Mazda's motorsport program built some pretty fantastic cars in the early 1990s. Alongside the legendary four-rotor 787B prototype that won Le Mans in 1991 was this car, the RX-7 GTO. Raced in IMSA, it also sported a four-rotor engine. You're going to want to hear this.
Road & Track contributing editor Marshall Pruett was at the IndyCar Long Beach Grand Prix last weekend, and managed to snag some in-car audio of an RX-7 GTO as it drove around the track during a historic demonstration session. Making around 600 horsepower in race trim, it sounds absolutely manic.
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