you are using Route::resource('cars', 'CarController');
and this will create restful routes to access your controller and in the car controller you should have functions like index(), show($id), destroy($id).
To see what are the valid routes, run php artisan routes
in your project directory.
if you want to follow the restful pattern which is what you want to do I think by using a resource route. be sure you have the function show($id)
in your CarController. the route to that function is cars/{$id}
so in your view make a link to this route:
{{link_to_action('CarsController@show', $car->Description, $car->id)}}
I hope this will fix the problem