1968 Plymouth Valiant 100

It looks like somebody relocated the fuel filler location on your Valiant. That patch on the driver side quarter is the tell tale. You said it has no carpet. Is the floor bare, or is there a rubber mat? Some of the bare bones cars had rubber mats instead of carpet. Post a picture of the tag on the driver side inner fender. Someone on this site will help you de-code it and tell you how your car was optioned from the factory. Post a few more pictures that include the interior, engine bay, and trunk. Nice Valiant, by the way. Welcome to FABO!