Downloads are unity packages. But includes fbx files too (if you need to use on other software).
Car models have ~20K poly each
Cars have no interiors, so can not be driven from inside!
Wheels and calipers are separated and have origin-pivots, so can be animated-changed etc. easily.
No texture is used on models, so they can be driven by any color you want (all parts are separated)
WARNING: These individual packages contains only 3d model and its textures within a unity package scene (as seen on screenshots). No special shaders, effects, particles, lightning or other models (like background etc.) are included! If you want to get unique car shaders, decals, planar reflections, sounds, particle effects and more, you have to get the full packages here: Packages