diff --git a/app/Enums/DocumentType.php b/app/Enums/DocumentType.php
new file mode 100644
index 0000000..cf60542
--- /dev/null
+++ b/app/Enums/DocumentType.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Enums;
+
+use BenSampo\Enum\Enum;
+
+/**
+ * @method static static BuyContractUnsigned()
+ * @method static static BuyContractSigned()
+ * @method static static SellContractUnSigned()
+ * @method static static SellContractSigned()
+ * @method static static Other()
+ */
+final class DocumentType extends Enum
+{
+    const BuyContractUnsigned =   0;
+    const BuyContractSigned =   1;
+    const SellContractUnSigned = 2;
+    const SellContractSigned = 3;
+    const Other = 4;
+}
diff --git a/app/Enums/InsuranceType.php b/app/Enums/InsuranceType.php
new file mode 100644
index 0000000..9e0e1aa
--- /dev/null
+++ b/app/Enums/InsuranceType.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Enums;
+
+use BenSampo\Enum\Enum;
+
+/**
+ * @method static static OptionOne()
+ * @method static static OptionTwo()
+ * @method static static OptionThree()
+ * @method static static OptionFour()
+ * @method static static OptionFive()
+ */
+final class InsuranceType extends Enum
+{
+    const OptionOne =   0;
+    const OptionTwo =   1;
+    const OptionThree = 2;
+    const OptionFour = 3;
+    const OptionFive = 4;
+}
diff --git a/app/Enums/PaymentType.php b/app/Enums/PaymentType.php
new file mode 100644
index 0000000..c2a05a3
--- /dev/null
+++ b/app/Enums/PaymentType.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Enums;
+
+use BenSampo\Enum\Enum;
+
+/**
+ * @method static static Transaction()
+ * @method static static Cash()
+ */
+final class PaymentType extends Enum
+{
+    const Transaction = 0;
+    const Cash = 1;
+}
diff --git a/app/Http/Controllers/BrandController.php b/app/Http/Controllers/BrandController.php
new file mode 100644
index 0000000..e0d172d
--- /dev/null
+++ b/app/Http/Controllers/BrandController.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Brand;
+use Illuminate\Http\Request;
+
+class BrandController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\Models\Brand  $brand
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Brand $brand)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  \App\Models\Brand  $brand
+     * @return \Illuminate\Http\Response
+     */
+    public function edit(Brand $brand)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \App\Models\Brand  $brand
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, Brand $brand)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \App\Models\Brand  $brand
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(Brand $brand)
+    {
+        //
+    }
+}
diff --git a/app/Http/Controllers/CarModelController.php b/app/Http/Controllers/CarModelController.php
new file mode 100644
index 0000000..66364c7
--- /dev/null
+++ b/app/Http/Controllers/CarModelController.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\CarModel;
+use Illuminate\Http\Request;
+
+class CarModelController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\Models\CarModel  $carModel
+     * @return \Illuminate\Http\Response
+     */
+    public function show(CarModel $carModel)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  \App\Models\CarModel  $carModel
+     * @return \Illuminate\Http\Response
+     */
+    public function edit(CarModel $carModel)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \App\Models\CarModel  $carModel
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, CarModel $carModel)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \App\Models\CarModel  $carModel
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(CarModel $carModel)
+    {
+        //
+    }
+}
diff --git a/app/Http/Controllers/CarPaymentController.php b/app/Http/Controllers/CarPaymentController.php
new file mode 100644
index 0000000..460148c
--- /dev/null
+++ b/app/Http/Controllers/CarPaymentController.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class CarPaymentController extends Controller
+{
+    //
+}
diff --git a/app/Http/Controllers/ContractController.php b/app/Http/Controllers/ContractController.php
new file mode 100644
index 0000000..2ff1dce
--- /dev/null
+++ b/app/Http/Controllers/ContractController.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class ContractController extends Controller
+{
+    //
+}
diff --git a/app/Http/Controllers/DocumentController.php b/app/Http/Controllers/DocumentController.php
new file mode 100644
index 0000000..8a6c371
--- /dev/null
+++ b/app/Http/Controllers/DocumentController.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class DocumentController extends Controller
+{
+    //
+}
diff --git a/app/Models/Brand.php b/app/Models/Brand.php
new file mode 100644
index 0000000..d83e76f
--- /dev/null
+++ b/app/Models/Brand.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Brand extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['brand'];
+
+    public function cars()
+    {
+        return $this->hasManyThrough(Car::class, CarModel::class);
+    }
+
+    public function carModels()
+    {
+        return $this->hasMany(CarModel::class);
+    }
+}
diff --git a/app/Models/CarModel.php b/app/Models/CarModel.php
new file mode 100644
index 0000000..da24632
--- /dev/null
+++ b/app/Models/CarModel.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class CarModel extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'car_model',
+        'brand_id',
+    ];
+
+    public function brand()
+    {
+        return $this->belongsTo(Brand::class);
+    }
+
+    public function cars()
+    {
+        return $this->hasMany(Car::class);
+    }
+}
diff --git a/app/Models/CarPayment.php b/app/Models/CarPayment.php
new file mode 100644
index 0000000..d828f26
--- /dev/null
+++ b/app/Models/CarPayment.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class CarPayment extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'amount',
+        'paid_at',
+        'payment_type',
+        'contract_id'
+    ];
+
+    public function contract()
+    {
+        return $this->belongsTo(Contract::class);
+    }
+
+    public function car()
+    {
+        return $this->hasOneThrough(Car::class, Contract::class);
+    }
+}
diff --git a/app/Models/Contact.php b/app/Models/Contact.php
index c843206..28d8324 100644
--- a/app/Models/Contact.php
+++ b/app/Models/Contact.php
@@ -8,4 +8,32 @@ use Illuminate\Database\Eloquent\Model;
 class Contact extends Model
 {
     use HasFactory;
+
+    protected $fillable = [
+        'firstname',
+        'lastname',
+        'phone',
+        'street',
+        'zip',
+        'city',
+        'country',
+        'company',
+        'email',
+        'notes',
+    ];
+
+    public function contracts()
+    {
+        return $this->hasMany(Contracts::class);
+    }
+
+    public function boughtCars()
+    {
+        return $this->hasManyThrough(Car::class, Contracts::class);
+    }
+
+    public function soldCars()
+    {
+        return $this->hasMany(Car::class, 'seller_id');
+    }
 }
diff --git a/app/Models/Contract.php b/app/Models/Contract.php
new file mode 100644
index 0000000..5a154a8
--- /dev/null
+++ b/app/Models/Contract.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Contract extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'sold_at',
+        'sell_price',
+        'contact_id',
+        'car_id',
+        'insurance_type',
+    ];
+
+    public function contact()
+    {
+        return $this->belongsTo(Contact::class);
+    }
+
+    public function car()
+    {
+        return $this->belongsTo(Car::class);
+    }
+}
diff --git a/app/Models/Document.php b/app/Models/Document.php
new file mode 100644
index 0000000..5e627e2
--- /dev/null
+++ b/app/Models/Document.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Document extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'document_type',
+        'car_id',
+    ];
+
+    public function car()
+    {
+        return $this->belongsTo(Car::class);
+    }
+}
diff --git a/composer.json b/composer.json
index be9b042..b58b49e 100644
--- a/composer.json
+++ b/composer.json
@@ -6,6 +6,7 @@
     "license": "MIT",
     "require": {
         "php": "^7.3|^8.0",
+        "bensampo/laravel-enum": "^3.3",
         "fideloper/proxy": "^4.4",
         "fruitcake/laravel-cors": "^2.0",
         "guzzlehttp/guzzle": "^7.0.1",
diff --git a/composer.lock b/composer.lock
index ed0cfad..e575075 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "9152521bce7b1f12fdec80ac14a17f93",
+    "content-hash": "a3bbf3a4cbd2672bb4b1dd877e708146",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -115,6 +115,89 @@
             },
             "time": "2020-10-30T02:02:47+00:00"
         },
+        {
+            "name": "bensampo/laravel-enum",
+            "version": "v3.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/BenSampo/laravel-enum.git",
+                "reference": "82d1ad8127e6fdd19f8fb86bf4b06cc80db6c9c0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/BenSampo/laravel-enum/zipball/82d1ad8127e6fdd19f8fb86bf4b06cc80db6c9c0",
+                "reference": "82d1ad8127e6fdd19f8fb86bf4b06cc80db6c9c0",
+                "shasum": ""
+            },
+            "require": {
+                "hanneskod/classtools": "^1.2",
+                "illuminate/contracts": "^8.0",
+                "illuminate/support": "^8.0",
+                "laminas/laminas-code": "^3.4",
+                "nikic/php-parser": "^4.10",
+                "php": "^7.3|^8.0"
+            },
+            "require-dev": {
+                "doctrine/dbal": "^2.9|^3.0",
+                "mockery/mockery": "^1.4",
+                "orchestra/testbench": "^6.2",
+                "phpstan/phpstan": "^0.12.59",
+                "phpunit/phpunit": "^8.5",
+                "squizlabs/php_codesniffer": "^3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                },
+                "laravel": {
+                    "providers": [
+                        "BenSampo\\Enum\\EnumServiceProvider"
+                    ]
+                },
+                "phpstan": {
+                    "includes": [
+                        "extension.neon"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "BenSampo\\Enum\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Sampson",
+                    "homepage": "https://sampo.co.uk",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Simple, extensible and powerful enumeration implementation for Laravel.",
+            "homepage": "https://github.com/bensampo/laravel-enum",
+            "keywords": [
+                "bensampo",
+                "enum",
+                "laravel",
+                "package",
+                "validation"
+            ],
+            "support": {
+                "issues": "https://github.com/BenSampo/laravel-enum/issues",
+                "source": "https://github.com/BenSampo/laravel-enum/tree/v3.3.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/bensampo",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-02-16T17:27:06+00:00"
+        },
         {
             "name": "brick/math",
             "version": "0.9.2",
@@ -956,6 +1039,55 @@
             },
             "time": "2021-04-26T09:17:50+00:00"
         },
+        {
+            "name": "hanneskod/classtools",
+            "version": "1.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/hanneskod/classtools.git",
+                "reference": "d365ddac0e602027c0471ea292f4ba2afcb49394"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/hanneskod/classtools/zipball/d365ddac0e602027c0471ea292f4ba2afcb49394",
+                "reference": "d365ddac0e602027c0471ea292f4ba2afcb49394",
+                "shasum": ""
+            },
+            "require": {
+                "nikic/php-parser": "^4",
+                "php": ">=7.1",
+                "symfony/finder": "^4|^5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "hanneskod\\classtools\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "WTFPL"
+            ],
+            "authors": [
+                {
+                    "name": "Hannes Forsgård",
+                    "email": "hannes.forsgard@fripost.org"
+                }
+            ],
+            "description": "Find, extract and process classes from file system",
+            "homepage": "https://github.com/hanneskod/classtools",
+            "keywords": [
+                "class finder",
+                "code generator",
+                "metaprogramming",
+                "minimizer"
+            ],
+            "support": {
+                "issues": "https://github.com/hanneskod/classtools/issues",
+                "source": "https://github.com/hanneskod/classtools/tree/1.0"
+            },
+            "time": "2020-03-05T20:41:28+00:00"
+        },
         {
             "name": "inertiajs/inertia-laravel",
             "version": "v0.3.6",
@@ -1155,6 +1287,202 @@
             ],
             "time": "2020-06-13T08:05:20+00:00"
         },
+        {
+            "name": "laminas/laminas-code",
+            "version": "3.5.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laminas/laminas-code.git",
+                "reference": "b549b70c0bb6e935d497f84f750c82653326ac77"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laminas/laminas-code/zipball/b549b70c0bb6e935d497f84f750c82653326ac77",
+                "reference": "b549b70c0bb6e935d497f84f750c82653326ac77",
+                "shasum": ""
+            },
+            "require": {
+                "laminas/laminas-eventmanager": "^3.3",
+                "laminas/laminas-zendframework-bridge": "^1.1",
+                "php": "^7.3 || ~8.0.0"
+            },
+            "conflict": {
+                "phpspec/prophecy": "<1.9.0"
+            },
+            "replace": {
+                "zendframework/zend-code": "^3.4.1"
+            },
+            "require-dev": {
+                "doctrine/annotations": "^1.10.4",
+                "ext-phar": "*",
+                "laminas/laminas-coding-standard": "^1.0.0",
+                "laminas/laminas-stdlib": "^3.3.0",
+                "phpunit/phpunit": "^9.4.2"
+            },
+            "suggest": {
+                "doctrine/annotations": "Doctrine\\Common\\Annotations >=1.0 for annotation features",
+                "laminas/laminas-stdlib": "Laminas\\Stdlib component"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Laminas\\Code\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "Extensions to the PHP Reflection API, static code scanning, and code generation",
+            "homepage": "https://laminas.dev",
+            "keywords": [
+                "code",
+                "laminas"
+            ],
+            "support": {
+                "chat": "https://laminas.dev/chat",
+                "docs": "https://docs.laminas.dev/laminas-code/",
+                "forum": "https://discourse.laminas.dev",
+                "issues": "https://github.com/laminas/laminas-code/issues",
+                "rss": "https://github.com/laminas/laminas-code/releases.atom",
+                "source": "https://github.com/laminas/laminas-code"
+            },
+            "funding": [
+                {
+                    "url": "https://funding.communitybridge.org/projects/laminas-project",
+                    "type": "community_bridge"
+                }
+            ],
+            "time": "2020-11-30T20:16:31+00:00"
+        },
+        {
+            "name": "laminas/laminas-eventmanager",
+            "version": "3.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laminas/laminas-eventmanager.git",
+                "reference": "966c859b67867b179fde1eff0cd38df51472ce4a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laminas/laminas-eventmanager/zipball/966c859b67867b179fde1eff0cd38df51472ce4a",
+                "reference": "966c859b67867b179fde1eff0cd38df51472ce4a",
+                "shasum": ""
+            },
+            "require": {
+                "laminas/laminas-zendframework-bridge": "^1.0",
+                "php": "^7.3 || ^8.0"
+            },
+            "replace": {
+                "zendframework/zend-eventmanager": "^3.2.1"
+            },
+            "require-dev": {
+                "container-interop/container-interop": "^1.1",
+                "laminas/laminas-coding-standard": "~1.0.0",
+                "laminas/laminas-stdlib": "^2.7.3 || ^3.0",
+                "phpbench/phpbench": "^0.17.1",
+                "phpunit/phpunit": "^8.5.8"
+            },
+            "suggest": {
+                "container-interop/container-interop": "^1.1, to use the lazy listeners feature",
+                "laminas/laminas-stdlib": "^2.7.3 || ^3.0, to use the FilterChain feature"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Laminas\\EventManager\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "Trigger and listen to events within a PHP application",
+            "homepage": "https://laminas.dev",
+            "keywords": [
+                "event",
+                "eventmanager",
+                "events",
+                "laminas"
+            ],
+            "support": {
+                "chat": "https://laminas.dev/chat",
+                "docs": "https://docs.laminas.dev/laminas-eventmanager/",
+                "forum": "https://discourse.laminas.dev",
+                "issues": "https://github.com/laminas/laminas-eventmanager/issues",
+                "rss": "https://github.com/laminas/laminas-eventmanager/releases.atom",
+                "source": "https://github.com/laminas/laminas-eventmanager"
+            },
+            "funding": [
+                {
+                    "url": "https://funding.communitybridge.org/projects/laminas-project",
+                    "type": "community_bridge"
+                }
+            ],
+            "time": "2021-03-08T15:24:29+00:00"
+        },
+        {
+            "name": "laminas/laminas-zendframework-bridge",
+            "version": "1.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laminas/laminas-zendframework-bridge.git",
+                "reference": "6cccbddfcfc742eb02158d6137ca5687d92cee32"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laminas/laminas-zendframework-bridge/zipball/6cccbddfcfc742eb02158d6137ca5687d92cee32",
+                "reference": "6cccbddfcfc742eb02158d6137ca5687d92cee32",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.3 || ^8.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^5.7 || ^6.5 || ^7.5 || ^8.1 || ^9.3",
+                "psalm/plugin-phpunit": "^0.15.1",
+                "squizlabs/php_codesniffer": "^3.5",
+                "vimeo/psalm": "^4.6"
+            },
+            "type": "library",
+            "extra": {
+                "laminas": {
+                    "module": "Laminas\\ZendFrameworkBridge"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "src/autoload.php"
+                ],
+                "psr-4": {
+                    "Laminas\\ZendFrameworkBridge\\": "src//"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "Alias legacy ZF class names to Laminas Project equivalents.",
+            "keywords": [
+                "ZendFramework",
+                "autoloading",
+                "laminas",
+                "zf"
+            ],
+            "support": {
+                "forum": "https://discourse.laminas.dev/",
+                "issues": "https://github.com/laminas/laminas-zendframework-bridge/issues",
+                "rss": "https://github.com/laminas/laminas-zendframework-bridge/releases.atom",
+                "source": "https://github.com/laminas/laminas-zendframework-bridge"
+            },
+            "funding": [
+                {
+                    "url": "https://funding.communitybridge.org/projects/laminas-project",
+                    "type": "community_bridge"
+                }
+            ],
+            "time": "2021-02-25T21:54:58+00:00"
+        },
         {
             "name": "laravel/fortify",
             "version": "v1.7.12",
diff --git a/database/factories/BrandFactory.php b/database/factories/BrandFactory.php
new file mode 100644
index 0000000..b4ed7be
--- /dev/null
+++ b/database/factories/BrandFactory.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Brand;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+class BrandFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = Brand::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition()
+    {
+        return [
+            'brand' => $this->faker->word(),
+        ];
+    }
+}
diff --git a/database/factories/CarFactory.php b/database/factories/CarFactory.php
index 24a50e5..d232c78 100644
--- a/database/factories/CarFactory.php
+++ b/database/factories/CarFactory.php
@@ -3,6 +3,8 @@
 namespace Database\Factories;
 
 use App\Models\Car;
+use App\Models\CarModel;
+use App\Models\Contact;
 use Illuminate\Database\Eloquent\Factories\Factory;
 
 class CarFactory extends Factory
@@ -22,7 +24,17 @@ class CarFactory extends Factory
     public function definition()
     {
         return [
-            //
+            'variation' => $this->faker->word(),
+            'stammnummer' => $this->faker->randomNumber(9, true),
+            'vin' => $this->faker->regexify('[A-Z]{3}ZZZ[A-Z0-9]{3}[A-Z1-9]{1}[A-Z]{1}[0-9]{6}'),
+            'colour' => $this->faker->safeColorName(),
+            'notes' => $this->faker->paragraph(),
+            'known_damage' => $this->faker->paragraph(),
+            'initial_date' => $this->faker->date(),
+            'bought_at' => $this->faker->date(),
+            'buy_price' => $this->faker->numberBetween(1000, 30000),
+            'seller_contact_id' => $this->faker->numberBetween(1, Contact::count()),
+            'car_model_id' => $this->faker->numberBetween(1, CarModel::count()),
         ];
     }
 }
diff --git a/database/factories/CarModelFactory.php b/database/factories/CarModelFactory.php
new file mode 100644
index 0000000..f5c91dc
--- /dev/null
+++ b/database/factories/CarModelFactory.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\CarModel;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use App\Models\Brand;
+
+class CarModelFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = CarModel::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition()
+    {
+        return [
+            'car_model' => $this->faker->word(),
+            'brand_id' => $this->faker->numberBetween(1, Brand::count()),
+        ];
+    }
+}
diff --git a/database/factories/CarPaymentFactory.php b/database/factories/CarPaymentFactory.php
new file mode 100644
index 0000000..fd9f28a
--- /dev/null
+++ b/database/factories/CarPaymentFactory.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\CarPayment;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use App\Enums\PaymentType;
+use App\Models\Contract;
+
+class CarPaymentFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = CarPayment::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition()
+    {
+        return [
+            'amount' => $this->faker->numberBetween(1000, 10000),
+            'paid_at' => $this->faker->date(),
+            'payment_type' => (string)PaymentType::getRandomValue(),
+            'contract_id' => $this->faker->numberBetween(1, Contract::count()),
+        ];
+    }
+}
diff --git a/database/factories/ContactFactory.php b/database/factories/ContactFactory.php
index dcacfaf..ba828f5 100644
--- a/database/factories/ContactFactory.php
+++ b/database/factories/ContactFactory.php
@@ -4,6 +4,10 @@ namespace Database\Factories;
 
 use App\Models\Contact;
 use Illuminate\Database\Eloquent\Factories\Factory;
+use Faker\Provider\de_CH\PhoneNumber;
+use Faker\Provider\en_US\Person;
+use Faker\Provider\en_US\Address;
+use Faker\Provider\en_US\Company;
 
 class ContactFactory extends Factory
 {
@@ -22,7 +26,15 @@ class ContactFactory extends Factory
     public function definition()
     {
         return [
-            //
+            'firstname' => $this->faker->firstName(),
+            'lastname' => $this->faker->lastName(),
+            'phone' => $this->faker->PhoneNumber(),
+            'street' => $this->faker->streetName(),
+            'zip' => $this->faker->postcode(),
+            'city' => $this->faker->city(),
+            'country' => $this->faker->countryCode(),
+            'company' => $this->faker->company(),
+            'notes' => $this->faker->text(),
         ];
     }
 }
diff --git a/database/factories/ContractFactory.php b/database/factories/ContractFactory.php
new file mode 100644
index 0000000..f819d34
--- /dev/null
+++ b/database/factories/ContractFactory.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Contract;
+use App\Models\Car;
+use App\Models\Contact;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use App\Enums\InsuranceType;
+
+class ContractFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = Contract::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition()
+    {
+        return [
+            'sold_at' => $this->faker->date(),
+            'sell_price' => $this->faker->numberBetween(1500, 35000),
+            'contact_id' => $this->faker->numberBetween(1, Contact::count()),
+            'car_id' => $this->faker->unique()->numberBetween(1, Car::count()),
+            'insurance_type' => (string)InsuranceType::getRandomValue(),
+        ];
+    }
+}
diff --git a/database/factories/DocumentFactory.php b/database/factories/DocumentFactory.php
new file mode 100644
index 0000000..810f368
--- /dev/null
+++ b/database/factories/DocumentFactory.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Document;
+use App\Models\Car;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use App\Enums\DocumentType;
+
+
+class DocumentFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = Document::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition()
+    {
+        return [
+            'name' => $this->faker->name(),
+            'car_id' => $this->faker->numberBetween(1, Car::count()),
+            'document_type' => (string)DocumentType::getRandomValue(),
+        ];
+    }
+}
diff --git a/database/migrations/2021_05_10_140156_create_contacts_table.php b/database/migrations/2021_05_10_135028_create_brands_table.php
similarity index 69%
rename from database/migrations/2021_05_10_140156_create_contacts_table.php
rename to database/migrations/2021_05_10_135028_create_brands_table.php
index e5e6ba6..41dfc6a 100644
--- a/database/migrations/2021_05_10_140156_create_contacts_table.php
+++ b/database/migrations/2021_05_10_135028_create_brands_table.php
@@ -4,7 +4,7 @@ use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Support\Facades\Schema;
 
-class CreateContactsTable extends Migration
+class CreateBrandsTable extends Migration
 {
     /**
      * Run the migrations.
@@ -13,8 +13,9 @@ class CreateContactsTable extends Migration
      */
     public function up()
     {
-        Schema::create('contacts', function (Blueprint $table) {
+        Schema::create('brands', function (Blueprint $table) {
             $table->id();
+            $table->string('brand')->unique();
             $table->timestamps();
         });
     }
@@ -26,6 +27,6 @@ class CreateContactsTable extends Migration
      */
     public function down()
     {
-        Schema::dropIfExists('contacts');
+        Schema::dropIfExists('brands');
     }
 }
diff --git a/database/migrations/2021_05_10_135156_create_contacts_table.php b/database/migrations/2021_05_10_135156_create_contacts_table.php
new file mode 100644
index 0000000..c7419ad
--- /dev/null
+++ b/database/migrations/2021_05_10_135156_create_contacts_table.php
@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateContactsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('contacts', function (Blueprint $table) {
+            $table->id();
+            $table->string('firstname')->nullable();
+            $table->string('lastname')->nullable();
+            $table->string('phone');
+            $table->string('street')->nullable();
+            $table->string('zip')->nullable();
+            $table->string('city')->nullable();
+            $table->string('country')->nullable();
+            $table->string('company')->nullable();
+            $table->string('email')->nullable();
+            $table->text('notes')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('contacts');
+    }
+}
diff --git a/database/migrations/2021_05_10_135208_create_car_models_table.php b/database/migrations/2021_05_10_135208_create_car_models_table.php
new file mode 100644
index 0000000..5f151ac
--- /dev/null
+++ b/database/migrations/2021_05_10_135208_create_car_models_table.php
@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateCarModelsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('car_models', function (Blueprint $table) {
+            $table->id();
+            $table->string('car_model');
+            $table->foreignId('brand_id')
+                ->onUpdate('cascade')
+                ->onDelete('cascade')
+                ->constrained('brands');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('car_models');
+    }
+}
diff --git a/database/migrations/2021_05_10_135957_create_cars_table.php b/database/migrations/2021_05_10_135957_create_cars_table.php
index 8ae4c25..091c5bd 100644
--- a/database/migrations/2021_05_10_135957_create_cars_table.php
+++ b/database/migrations/2021_05_10_135957_create_cars_table.php
@@ -15,7 +15,23 @@ class CreateCarsTable extends Migration
     {
         Schema::create('cars', function (Blueprint $table) {
             $table->id();
+            $table->string('variation');
+            $table->integer('stammnummer');
+            $table->string('vin', 17);
+            $table->string('colour')->nullable();
+            $table->text('notes')->nullable();
+            $table->text('known_damage')->nullable();
+            $table->date('initial_date');
+            $table->date('bought_at');
+            $table->integer('buy_price');
+            $table->unsignedBigInteger('seller_contact_id');
+            $table->foreignId('car_model_id')
+                ->onUpdate('cascade')
+                ->onDelete('cascade')
+                ->constrained('car_models');
             $table->timestamps();
+
+            $table->foreign('seller_contact_id')->references('id')->on('contacts');
         });
     }
 
diff --git a/database/migrations/2021_05_10_144041_create_contracts_table.php b/database/migrations/2021_05_10_144041_create_contracts_table.php
new file mode 100644
index 0000000..9ae7ea6
--- /dev/null
+++ b/database/migrations/2021_05_10_144041_create_contracts_table.php
@@ -0,0 +1,44 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use App\Enums\InsuranceType;
+
+class CreateContractsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('contracts', function (Blueprint $table) {
+            $table->id();
+            $table->date('sold_at');
+            $table->integer('sell_price');
+            $table->foreignId('contact_id')
+                ->onUpdate('cascade')
+                ->onDelete('cascade')
+                ->constrained('contacts');
+            $table->foreignId('car_id')
+                ->onUpdate('cascade')
+                ->onDelete('cascade')
+                ->constrained('cars');
+            $table->enum('insurance_type', InsuranceType::getValues())
+            ->default(InsuranceType::OptionOne);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('contracts');
+    }
+}
diff --git a/database/migrations/2021_05_10_144114_create_documents_table.php b/database/migrations/2021_05_10_144114_create_documents_table.php
new file mode 100644
index 0000000..694dd29
--- /dev/null
+++ b/database/migrations/2021_05_10_144114_create_documents_table.php
@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use App\Enums\DocumentType;
+
+class CreateDocumentsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('documents', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->enum('document_type', DocumentType::getValues())
+            ->default(DocumentType::Other);
+            $table->foreignId('car_id')
+            ->onUpdate('cascade')
+            ->onDelete('cascade')
+            ->constrained('cars');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('documents');
+    }
+}
diff --git a/database/migrations/2021_05_10_144704_create_car_payments_table.php b/database/migrations/2021_05_10_144704_create_car_payments_table.php
new file mode 100644
index 0000000..0f9a15a
--- /dev/null
+++ b/database/migrations/2021_05_10_144704_create_car_payments_table.php
@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use App\Enums\PaymentType;
+
+class CreateCarPaymentsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('car_payments', function (Blueprint $table) {
+            $table->id();
+            $table->integer('amount');
+            $table->date('paid_at');
+            $table->enum('payment_type', PaymentType::getValues())
+            ->default(PaymentType::Transaction);
+            $table->foreignId('contract_id')
+            ->onUpdate('cascade')
+            ->onDelete('cascade')
+            ->constrained('contracts');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('car_payments');
+    }
+}
diff --git a/database/seeders/CarSeeder.php b/database/seeders/CarSeeder.php
deleted file mode 100644
index 9c017f2..0000000
--- a/database/seeders/CarSeeder.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-namespace Database\Seeders;
-
-use Illuminate\Database\Seeder;
-
-class CarSeeder extends Seeder
-{
-    /**
-     * Run the database seeds.
-     *
-     * @return void
-     */
-    public function run()
-    {
-        //
-    }
-}
diff --git a/database/seeders/ContactSeeder.php b/database/seeders/ContactSeeder.php
deleted file mode 100644
index 49f74a8..0000000
--- a/database/seeders/ContactSeeder.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-namespace Database\Seeders;
-
-use Illuminate\Database\Seeder;
-
-class ContactSeeder extends Seeder
-{
-    /**
-     * Run the database seeds.
-     *
-     * @return void
-     */
-    public function run()
-    {
-        //
-    }
-}
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index 57b73b5..7598bf3 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -3,6 +3,15 @@
 namespace Database\Seeders;
 
 use Illuminate\Database\Seeder;
+use App\Models\User;
+use App\Models\Car;
+use App\Models\CarModel;
+use App\Models\Brand;
+use App\Models\CarPayment;
+use App\Models\Contract;
+use App\Models\Contact;
+use App\Models\Document;
+use Illuminate\Support\Facades\DB;
 
 class DatabaseSeeder extends Seeder
 {
@@ -13,6 +22,113 @@ class DatabaseSeeder extends Seeder
      */
     public function run()
     {
-        // \App\Models\User::factory(10)->create();
+        DB::statement('SET FOREIGN_KEY_CHECKS=0;');
+        CarPayment::truncate();
+        Contract::truncate();
+        Document::truncate();
+        Car::truncate();
+        Contact::truncate();
+        CarModel::truncate();
+        Brand::truncate();
+        DB::statement('SET FOREIGN_KEY_CHECKS=1;');
+    
+        foreach ($this->getBrands() as $brand) {
+            Brand::create(['brand' => $brand]);
+        }
+
+        $carModels = CarModel::factory()
+            ->count(350)
+            ->create();
+        
+        $contacts = Contact::factory()
+            ->count(100)
+            ->create();
+
+        $cars = Car::factory()
+            ->count(40)
+            ->create();
+
+        $contracts = Contract::factory()
+            ->count(20)
+            ->create();
+
+        $carPayments = CarPayment::factory()
+            ->count(15)
+            ->create();
+
+        $documents = Document::factory()
+            ->count(10)
+            ->create();
     }
+
+    public function getBrands(): array
+    {
+        return [
+            "Abarth",
+            "Alfa Romeo",
+            "Aston Martin",
+            "Audi",
+            "Bentley",
+            "BMW",
+            "Bugatti",
+            "Cadillac",
+            "Chevrolet",
+            "Chrysler",
+            "Citroën",
+            "Dacia",
+            "Daewoo",
+            "Daihatsu",
+            "Dodge",
+            "Donkervoort",
+            "DS",
+            "Ferrari",
+            "Fiat",
+            "Fisker",
+            "Ford",
+            "Honda",
+            "Hummer",
+            "Hyundai",
+            "Infiniti",
+            "Iveco",
+            "Jaguar",
+            "Jeep",
+            "Kia",
+            "KTM",
+            "Lada",
+            "Lamborghini",
+            "Lancia",
+            "Land Rover",
+            "Landwind",
+            "Lexus",
+            "Lotus",
+            "Maserati",
+            "Maybach",
+            "Mazda",
+            "McLaren",
+            "Mercedes-Benz",
+            "MG",
+            "Mini",
+            "Mitsubishi",
+            "Morgan",
+            "Nissan",
+            "Opel",
+            "Peugeot",
+            "Porsche",
+            "Renault",
+            "Rolls-Royce",
+            "Rover",
+            "Saab",
+            "Seat",
+            "Skoda",
+            "Smart",
+            "SsangYong",
+            "Subaru",
+            "Suzuki",
+            "Tesla",
+            "Toyota",
+            "Volkswagen",
+            "Volvo"
+        ];
+    }
+
 }