Thanks for the replies chaps.
I think modern cars have "waterbased" paints as well, and i've heard they are softer than the old paints?
As i said, i always chuck the zafira through the car wash, as its nothing special and i can't be bothered
to make an effort on it. It has swirls already from too many car-wash cycles.
My little toy car gets the bucket job, poor thing is 24 years old now: