Crazy Brits Made a Real Car Change Color Like Hot WheelsRobert Sorokanich10/09/13 6:40pmFiled to: carspainthot wheels09EditPromoteShare to KinjaToggle Conversation toolsGo to permalink GIF As a kid, my favorite Hot Wheels toy cars were the ones that changed color in cold or hot water. Tons of fun in the bathtub! But eventually, we all grow up and accept the fact that real cars don't change colors (or jump through waterfalls). Or, you could hang on to those childhood dreams and paint your real car in thermochromic paint—like these crazy gearheads from the UK. Now to find a bathtub it'll fit in.