If someone asked you about the smallest rotary ever used in a car, what machine comes to mind? An NSU Prinz? Maybe one of those CERV Corvette prototypes that played with a mid-engine Dorito-spinner? Surely a litany of Mazdas is on the tip of your tongue.
Of course, I’m leading you on. It’s none of those—in fact, it barely qualifies as an engine, though it does operate using internal combustion. Hidden in the back seat of many 1994–2005 Volkswagens and Audis sits a tiny Wankel rotary engine whose sole duty is not to turn fuel into horsepower and braps but to save the life of a person.
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