crap i cant believe that actually happened. i would have thought a guy with a 535i would have been in AWE when seeing "the real thing" and been all nice to you and stuff. thats all ive ever encountered from everyone. even people who didnt even drive BMW's.
but you really should have gone for the run, after all, it would have answered your question. if he had won, then at least he would have been walking the walk, and if you had beat him(the more likely outcome) it would have been that much sweeter!!