The first thing I did when I got my 330 Coupe recently (on a dry day!), was wash the car then claybar it using the bottle of lube and also with soapy water. Didn't fancy using all the lube up as I wanted to claybar the wife's Corsa too. The soapy water worked ok, although not as good as the lube. You have to kneed the clay every now and then to get a fresh bit. I also washed it under warm running water while kneeding it to get rid of some of the muck. When dry, I used Turtlewax Platinum...cos it seemed to get a good review on the Autoexpress test. To my mind it's pretty good, but i'm thinking of getting a dual action polisher and kit from Detailing World. Hopefully better results with no swirls!