While variable geometry engine air intakes were banned from Formula 1 in 2006, only to become legal again later on, you can find this technology in many road cars today. Typically, it goes by the term ...

In 1991, little Mazda stood at the top of the world. It won the 24 Hours of Le Mans with its banshee Mazda 787B prototype, and here is the 700-horsepower quad-rotor engine that got it the win. This is ...