I'm thinking the 49 Cad was the first car that had a hidden gas filler behind the tail light. Was it? For other cars that had hidden gas fillers other then behind the license plate, 56 & 57 Chev and 57 Olds only come to mind. There must be others, I just can't think of any. If you know of one or have a picture of one please post it.
60 caddy was fun to find, in the middle of the rear "grill". I bet there were other caddys too. lots of 60s-70s gms had them behind the license plate.
My '57 Cadillac had behind left tail light. '56-'57 Continental Mk IIs had them behind left tail light as well
Just found this. Cadillac in '41 and more http://www.jalopyjournal.com/forum/...ith-hidden-gas-filler-necks-what-mfgs.686876/
Great to know a Chevy guy knows that, October 1908, the first of the 15 Million hidden gas cap cars rolled off the assembly line. The feature was so missed that Ford brought it back in 1932-34 for use on truck cabs. Bob
Ford put them behind the tag starting in '52, except for station wagons and sedan deliveries which had them behind a door on the left quarter panel.