Car becomes the Hulk when it splashed with water

Rene Turrek his sign German graffiti artist, has painted a BMW with large pictures of Hulk. He then covered the Hulk with a special type of paint, which is transparent briefly in contact with hot water, just like these Hot Wheels toy cars, which change color, when they are immersed in water. Brilliant!

Nails
BMW X6 - Hulk - Rene Turrek