If this comes out nice please, put it up on steam for free and see how people like it
I'm think you should name it Low Poly League
I don't know how far you want to get into this game but you could make a basic multiplayer on steam using their servers, a fun game that runs on anything for free is always a nice touch to the gaming world
As for help I might be able to help you deal with steam (like paperwork and stuff) if you want to and coding logic but I don't have a clue on anything C
Also, make it so you can change cars paint colors, give 3 trim options for every car, and maybe custom logo uploading for the sides, maybe? Customisable things in games is always a nice touch.
Another name! Retro Rally