After weathering the Great Depression and World War II, the long, luxurious Buick XP-300 was a sight for sore eyes. But beyond its creamy white curves, it hid a bounty of excessive peacetime engineering. But if ever there were a car from the future – the 1951 GM Le Sabre was it: specialty metals like magnesium and aluminium, 325 horsepower and capable of running on gasoline or alcohol.
