Well I risked it and my paint didn't fall off :) Completely washed, claybarred and wax polished the car.
I was expecting something MER like - powdery, thick sort of stuff.
The Colourmagic was very smooth in consistancy and went on easy. I left it a bit too long in hindsight as it was a pain to get off, but it was the first time I have waxed it.
RainX'd the windows as well, see how that performs on this car.
Oh, and I stuck the Lexus grille badge back on; better methinks.
Whitey