Hot Wheels Custom Motors 2010 Mustang: Go from street car to race car to monster machine. This assortment lets kids build and race their very own customised Hot Wheels cars in a matter of seconds. Each 1:43 scale vehicle has realistic details and comes with 2 sets of wheels. The interchangeable, modular system features easy, snap-on parts with more than 15 parts for over 100 combinations. Build your collection and the custom possibilities.