The NASCAR Heat 3 September DLC includes 46 new paint schemes from the Monster Energy NASCAR Cup Series, many are patriotic schemes. Also included are 10 schemes from the NASCAR Xfinity Series and 3 new Challenges! Expect paint schemes like the following:

MENCS:
Kyle Busch, Skittles Red, White, and Blue
Chase Elliott, Mountain Dew/Little Caesars

NXS:
Elliott Sadler, Armour
John Hunter Nemechek, Chevrolet Accessories

Plus many more!