In 1962 the Milan car manufacturer ISO introduced its second model, the Grifo. The first was the Rivolta, Giorgio Giugiaro of Bertone designed the body and Giotto Bizzarini, creator of the Ferrari GTO, engineered it. The Griffo was powered by a Chevrolet 5.3 liter V8 and sat atop a shortened Rivola platform. The engine was placed in the front and drove the rear transaxle. The Borg-Warner T4 4-speed manual gearbox lacked overdrive, a problem that would cause it problems in future endurance racing. At speeds, the driver had to back off the accelerator pedal to help preserve the life of the engine. With over 400 horsepower from the GM small-block and weighing less than 2200 pounds, the vehicle was able to achieve 190 miles per hour.