If you had access to a 46-liter airplane engine and a few ancient chassis, wouldn't you at least consider an unholy experiment or two? The doctors Frankenstein at Germany's Sinsheim Technical Museum did just that with Project Brutus.
A 12-cylinder World War I-era aircraft engine melded with a chain-driven set of wheels, the Brutus sounds like the angry spirit of the Red Baron attempting an escape from his metal prison. Sure it's not historically accurate, but I bet it serves some tasty brats. (H/t to Simun) [Sinsheim Technik Museum]