Seldom Seen: 1967 Pontiac GP 428 Convertible (opens in new tab)

I'd call this 1967 Pontiac Grand Prix convertible a twofer. Firstly, it's one of only 5,800 GP drop tops assembled in '67 - the only year that body style was offered, and it's got an optional, big, honking 428 CI V8 under its Montana-sized hood. Well, that's the good news; beyond that, well, tag along,...