Gullwings weren’t just an eighties obsession; if you were part of the newly minted jet-set in the fifties, then a Mercedes-Benz 300 SL Alloy Gullwing ($5- to $6-million) was the thing to have. Aside from unique doors, the car could do 215 hp in a 2,996 cc SOHC inline six-cylinder engine. This particular model, though, has an aluminium body. In fact, only twenty-nine aluminium-bodied versions were produced (less than 2% of the production run). These lighter cars were able to complete with other 3-litre British and Italian sports cars of the era.