This is the third classic Fiat 500 we've looked at here, and the third to have been photographed on the streets of San Francisco. This one is fairly interesting, since it participates in the annual California Melee road rally and other events.
California Streets has been on a sort of hiatus for the past month, owing to real-life responsibilities and a lack of motivation to write. So I employed my rule of "When in doubt, Tri-Five Chevy". Here's a 1956 Chevrolet Two-Ten (or 210) pillared sedan.