I have recently tried G Techniq G Wash and I can say it is quite possibly the best car shampoo I have ever used. What I have tried before: - Autoglym Body Wash - Meguiars NXT Wash - Meguiars Ultimate Wash and Wax - Meguiars Gold - Turtle Wax, Wash and Wax Well it has worked a treat on my solid black A3 and it must have some serious polymer technology... water doesn't just bead off it runs for its life! In terms of the car being a dirt magnet... it has been repelling dust like never before as well. Has a nice subtle cherry smell to it too. Amazing stuff! Shame about the C4 though it lets the product range down. Water just disappears when the car is rinsed - thus I feel I have avoided the need to by an Aqua Gleam De-ioniser (30ppm).