Automobile
A car is an automated, mechanical vehicle typically found in large cities.
Fiction
My Little Pony Tales
Cars were a common form of transportation among adult ponies.
Friendship is Magic
While eating at Chicoltgo pizza, Tempest was confused by a high speed chase between a series of cars and the blues ponies. The chase was so intense that a series of dust-clouds.
Equestria Girls
Cars are extremely common among teenagers and adults, especially in big cities like Canterlot.
Design
Cars are fairly small vehicles, much smaller than skyships but larger than most carts and other typical vehicles.