The principle of a 12-cylinder is simple. It comprises 12 pistons mated to a common crankshaft that are usually split between ...

Discover 20 revolutionary car prototypes that almost changed automotive history—from nuclear-powered sedans to flying hovercars. Why did these futuristic visions fail?

Audi conceived the Rosemeyer supercar concept in 2000 but never moved forward to production. Why did this car become the ...