Car line-up marks Forza 4 launch

An impressive line-up of supercars worth over £8 million has taken to London's streets in order to mark the celebrations held in connection with the launch of Forza Motorsport 4.

Available on the Xbox 360, the Forza 4 team joined up with the BBC's Top Gear to include the Top Gear Test Track at Dunsfold Aerodrome in the game, as well as voiceovers from Jeremy Clarkson for some of the game's cars.

Four of the vehicles that took part in the show were worth over £1 million each. The Bugatti Veyron, carbon Pagani Zonda, race-prepared McLaren F1 and Ferrari Enzo were the major attractions in the line-up.

Supercars from Aston Martin, Audi, Lamborghini and Mercedes also graced the show with their presence.

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