I was sitting at the sidewalk cafe of the Beverly Wilshire hotel, enjoying a cigar, when the racer and the black one stopped just after the lights. The guy from the black one got out and chatted with the racer for a few minutes, then he got back into his car and they drove off at the same time.
Not wanting to lose my prime seating/viewing/smoking position, I did not rush across Wilshire to say hello. Was I right or was I wrong?
In any case, a few minutes afterwards, I heard a roaring/buzzing/snarling car from the right and sure enough it was the racer again on Wilshire, took a right onto Rodeo drive.
For me 'twas a memorable moment.
Pity I never got to ride in one while I was in LA. Maybe next time.