McLaren Tests MP4-12C GT3 Racecar

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CRS Racing teams with McLaren Automotive to develop a GT3 racing version of the British supercar. Among the more significant changes for the track are the addition of new aero body pieces, a new suspension and a new Ricardo racing gearbox. The twin-turbo 3.8-liter V8 from the production car has been race-tuned for the GT3 edition

Source: McLaren Tests MP4-12C GT3 Racecar