Two important characteristics differentiated the IR 300 from other GTs on the market in that period: the engine and an innovative chassis.

Italy, and Ferrari in particular, was known for small displacement engines that performed best at high engine rpm. Renzo Rivolta chose a more reliable and high-powered Chevrolet Corvette V-8, and the first reaction of Giotto Bizzarrini, former track engineer at Ferrari, was: “I am shocked, it is superior to Ferrari’s engine.”
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