The Corvair seats I've seen don't have the chrome trim over the top, they fold straight forward instead at an angle and look narrower. There are Olds Starfires, Buick Wildcats and Pontiac Grand Prix and maybe Bonnevilles/Catalinas that use seats that look just like the '62-'64 Impala SS buckets (although the floor mounts are probably different). The seat foam I got for my '64 had '62-'64 Impala, Grand Prix written on the box.