Peter,

You are quite welcome. I think a Columbo episode featuring a race car driver would have been enormous fun. Columbo puttering about in the pits, interrupting the mechanics and drivers while sniffing about for clues. Driving his Peugot onto a race track to see the suspect/murderer and getting in the way of the race cars. Some delicious possibilities. He would probably show up to arrest the driver while he was on the starting line of the next race! Alas, this episode was never made.

I'm guessing your experience in auto racing would peak your interest in such an episode.