The mental-looking car in the photos below is the GTbyCitroen, a Citroen concept supercar designed specifically for Gran Turismo 5 and then made in real life. Cool, huh?

It has been spending the day today touring central London through places like Trafalgar square, Piccadilly and Regent Street as part of an effort to recreate a section of the London street course in GT5.

"The result of a unique partnership between CitroŽn and Polyphony, the GTbyCITROňN concept measures nearly five metres long (4.96m) and just over a metre high (1.09m) with an impressive supercar design sporting wide air intakes, rear air-diffuser, horizontal LED headlamps, gull wing doors and diamond-effect 21inch aluminium wheels," says the release. And we want one.

The GTbyCitroen will be on show at the Goodwood Festival of Speed (3-5 July), and will climb the famous 1.16-mile Goodwood Hill as part of the Sunday Times Supercar Run.

GT5 is expected out late next year. Gran Turismo on PSP, however, will (finally) be out on October 1, alongside the new PSP Go.