A PERFORMANCE car tuning company has transformed Porsche’s top of the range 911 GT2 RS into a supercar capable of speeds of up to 227mph - making it the fastest 911 in the world. For 15 years, BBI Autosport have been the experts in high-end, off-the-market tuning. Starting with the factory model, BBI upgraded the classic 911 with a custom engine, larger turbos and an advanced cooling system. To buy from the showroom, the Porsche 911 GT2 RS typically sells for over $350,000 – but with this level of modification, this car would cost closer to half a million dollars.