Worth it for the discounted price, but respectfully, there are some serious optimization issues here. One tire for example is 3500 tris. That is crazy! 84 submeshes on a single truck model.. I'm not sure if you've ever worked under the hood for games, but each one of these is a render call, these need a lot of effort to re-work in order to be game ready. Worth it for the 90% off discount though.
Viewing post in POLY - Survival Vehicles Kit (Unity, UE, Godot) comments
Honestly, easier thing to do is just use the same material for everything and simplify your tires. Your tires can just be a cylinder using a dark grey with a little bit of indenting work. Then join all the meshes together, UVing all of the things to one mat/texture. I think you should be able to bring down the tri count/render call on all of them by ~90% while still keeping most of the fidelilty