In the 1960s, GM had a well-established divisional hierarchy with Cadillac at the top, followed by Buick, Oldsmobile, Pontiac and Chevrolet. It was very unusual to have a "lesser" division price a shared platform model above a "higher" division's entry. The Oldsmobile Starfire was one of those exceptions. It was more expensive than a Buick LeSabre or Electra and not too far below a Cadillac Calais. The engine was impressive, too. the 425-cid put out 375 hp. Here's a '65 Starfire convertible, the last year for the convertible and one of just 2,236 built.