Reinventing the wheel, is actually impossible.The Porsche engineers were nearly there. By means of the world's largest radial wheel, Porsche manufactured the rim base of woven carbon-fibre compound.br br More than 18 kilometers of carbon-fibre and over 200 individual components were processed. More than 2,000,000 test kilometers and over 4,500 test laps were driven. The result: the new 20-inch 911 Turbo carbon wheel is 20 lighter, 20 stronger and yet 100 performance.