Scot Wade from Wimberley, Texas, started creating dirty car art when he lived on a long dirt road for over 20 years. Dirty cars are the perfect canvas for Scott’s unusual art and he has built up an impressive collection of pictures of 'grime art' from Leonardo Da Vinci's Mona Lisa to a portrait of Albert Einstein. The images are so incredible that motorists often stop at traffic lights and jump out of their own cars to admire them.

He creates the pictures, which have also included a life-like face of footballer Ronaldinho, on the back windows of his and his wife's cars using his fingers and an assortment of brushes. Mr Wade doesn't always wait for his cars to get dirty enough to draw on. In most cases he has to apply the dirt himself. He rubs oil onto the window and buys bags of Fuller's earth, the type used on film sets, and uses a hair dryer to blow the dirt on. The process takes ten minutes, much quicker than the seven days Mr Wade said it would take to build up a 'natural' canvas by driving a car up and down a dirt track.