When I had my 135i, I had the one "Is that the new M3" and then I had a cop pull up next to me motion to roll down the window, and of course I do, he says "You need to go home and wash that car, it looks to good to be dirty" LOL
And of course now with the 1M I get guys pretty excited to see it chasing me down telling me how great it looks from behind and then just the constant stairs and smiles, kids love it and it makes people happy