This is just cosmetic but alot of cars have fenders that are plastic or a different color than most of the car ex: https://www.rockymountainsusp.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/0/107-03f_1_9.jpg i think it would improve the game tho.
There is a mod in the workshop with basic geometric shapes, you could do a “vinyl wrap” the paint finish would be the same, but it would be 2-tone.