The magic car paint that changes color with the weather

Remember as a kid when you yearned for those crazy Hot Wheels cars that changed color when you dunked them in hot and cold water? It was about as much fun as you could have, short of striking first in a game of roshambo.

It's the kind of fun you just can't have as an adult. Fortunately, a small UK body shop called Auto Kandy claims to have created a solution for those still dreaming of multi-colored Mustangs: Paint your car in thermochromic paint, and have yourself a full-size Hot Wheels color shifter.