Mattel Hot Wheels Color ShiftersHot Wheels Color Shifters vehicles rev up the fun of sensory play with cars that change color when dipped in water! When kids dunk or splash their 1: 64 scale Color Shifters vehicle with icy cold or very warm water, it instantly changes color. Change the water temperature and the deco changes back. It's like having two cars in one hit the road, race the track and then change color and race again. Each sold separately, subject to availability. Colors