Firebird II

GM XP-500

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Dome of the GM Technical Center in Warren, Michigan, where General Motors unveiled the XP-500 in May 1956

GM XP-500: The 1956 Dream Car With No Crankshaft That Could Run on Peanut Oil The most radical engine General Motors ever put in a car didn’t have a crankshaft, didn’t have connecting rods, and had been run on whale oil in the lab. GM installed it in a bubble-topped two-seater called the XP-500, showed … Read more