X1 PrototypeSony has officially revealed the latest creation from F1 design guru Adrian Newey, with the unveiling of the fantasy racing car that will be included in the "Gran Turismo 5" game.

The X1 Prototype, designed by Newey in conjunction with Gran Turismo creators Polyphony Digital, was "shaken down" virtually by Red Bull driver Sebastian Vettel at the Suzuka circuit. The car includes a glass canopy and covered wheels, powered by a forced induction engine which produces 1,483hp at 15,000rpm, with a top speed of 400kph (250mph) and up to 6G of lateral G-force.

"The results were thrilling," said Newey. "X1 is about evolution. Delivering the optimum combination of tested technologies in a single integrated design. This would be the future of racing were we not bound by regulations, but one that is achievable today.

"And as Sebastian has shown, it is about devastating speed coupled with real handling control. Today thanks to PlayStation 3 and Gran Turismo, we can test-drive the future."