I got pulled over once in my S1, and it was because their was a spate of stolen cars in the area and mine being an older car they thought it could have been an easy target, plus the fact the road was terible and I was swerving about dodging pot holes! it was the traffic police and they were very nice, saying it was in great nick and was good to see it in that condition!

Think it all just depends on what your doing and who the cop is!