One of the best ways to improve the performance of a vehicle is to remove weight. What's even better, is to remove unsprung weight or reduce rotational mass. By reducing the weight of a wheel, you improve its ability to respond to road bumps thus increasing grip, and the less weight requires less energy to increase or decrease speed thus improving acceleration.
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This spring, the new BMW M4 GTS whose six-cylinder in-line engine develops 500 hp with the help of the water injection system employed for the first time in a series-produced vehicle and which sets new standards in intelligent lightweight design with features including an array of components made from carbon-fibre-reinforced plastic (CFRP) will be available from launch in March 2016 with another innovation in chassis technology, carbon compound wheels.
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The options list for the BMW M4 GTS will include the new M Carbon Compound wheels (front: 9.5 J x 19, rear: 10.5 J x 20), whose innovative material characteristics bring about a significant reduction in unsprung and rotating masses and therefore have a positive effect on the cars acceleration and deceleration, steering responses, and vibration levels.
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Designed for the race track yet also approved for road use, this technological showpiece is therefore the world's first series-produced vehicle that can be fitted with wheels boasting a CFRP/aluminium-composite construction. They enable around 15 pounds to be shaved off the weight of a BMW M4 GTS fitted with the already lightweight forged aluminium wheels. Rim wells in exposed carbon also lend the BMW Carbon Compound wheels exclusive visual accents. The wheels are fitted with Michelin Pilot Sport Cup 2 tires (front: 265/35 ZR19, rear: 285/30 ZR20) adapted specially for the BMW M4 GTS.—Nate Risch
