Cars can be: autos, carros or coches, depending on which country you are in.
Four cars: cuatro autos/carros/coches
to say sell cars in spanish is to say, vender auto. Vender is selling can auto is car.
Me gusta (cars) viejo
tranvías
se venden automoviles
Bicicletas y carros
los coches negros
Me encanta los coches.
veo tres carros
Cars can be: autos, carros or coches, depending on which country you are in. Four cars: cuatro autos/carros/coches
the other person who answered it said it was car well you can say that but its normally cart
To fix cars = arreglar autos
Depending on your region: Trescientos carros Or: Trescientos coches (Spain itself)