Cars, not the movie.

Average Car anthro, or Carmorph: 7 to 8 feet tall, plastics frames and etc for their skin with steel bones and either rigid mechical car parts of smooth mechanical car parts, either one of two exhaust pipes on the back of the waists, head shape is the type of car their are with the headlights being the eyes, like for a sedan it will have a head shape of sedan's front half without the wheels, and their will be two doors of the type of car on the back, the belly, waist, inner thighs, throat, palms, fingers, crotch, genitals and bottoms of feet are made from a rubbery material that simulates skin. No feet and wheels on the back of ankles with most cars having the retractable wheels and some cars balancing on the wheels, Vehicloid also have wide mouths to fit the head shapes, all Vehicloids have back bumper on the ass. For Sports/Drag cars like Lamborghini, Bugatti, and Ferrari, etc, they have more slimmer bodies, making them more aerodynamic for racing, access to carbon fiber frames and, gourmet exhaust pipes behind the waist. Pickup trucks and Cargo trucks are called Truckmorphs and they're huge huge, Cargo trucks average size being 3 to times bigger than a Carmorph, and pickup trucks average height being up to 2.5 feet taller than the average Carmorphs, vans, buses being in the same boat, all of them has holes in their back so that payload, cargo goods, etc could be attached and shipped off. Motorcycles anthro or Motercyclemorphs: 5 feet and 6 inches tall to 5 feet and 9 inches feet tall, same as the Carmorphs but smaller and with motorbikes, and no retractable wheels, and the seat on the lower back, they have two handle bars on either sides of their head, their head shapes are the bikes front wheel base with one to four headlight eyes, they have often skinnier, slimmer bodies, for drag or sports bikes, they have digitigrade legs. And more aerodynamic shapes. First all Carmorphs, Truckmorphs ad Motercyclemorphs all have the engine as their core and heart of the mechanism, they all could use that engine power to move using their wheels, and make the distinct engine Rev sound with the idle being quieter. In this world, the cars had became the world population, human had gone extinct due to a war, forgotten from time, now most Vehicloids don't even know what one us, but they're are the government ms keeping this information secret from public. The theory of humans is nothing but a myth to them.