As rare as it was, the 1970 and 1971 GT-37 wasn't the only obscure Tempest-related model that Pontiac offered around the turn of the decade. There was also the Custom S, a one-year-only A-body ...

Anyone who remembers the 1969 Pontiac Custom S is a true professor of muscle car history. The one-year-only nameplate was supposed to be a low-price competitor of the no-frills Plymouth Road ...