Anyone with a White Car should try the Jeffs Werkstat Acrylic kit. I bought some For my wifes Fiat 500 two years ago and used it as the first paint treatment on the day she got the car. Gives a really good finish. She goes 2-3 months sometimes without washing it, and road tar etc just washes off with hot soapy water. Ive treated the car once in December 2009 with it and only recently noticed it needs doing again. Not bad for a £50 kit.