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2010 McLaren-Mercedes MP4-25 Formula One

• The McLaren MP4-25 is a Formula One racing car designed and raced by McLaren in the 2010 season. The chassis was designed by Paddy Lowe, Neil Oatley, Tim Goss, Andrew Bailey and John Iley and was powered by a customer Mercedes-Benz engine. The car, which was driven by 2009 World Champion Jenson Button and 2008 World Champion Lewis Hamilton,

• It was officially unveiled at title sponsor Vodafone's headquarters in Newbury, Berkshire, UK on 29 January 2010. The MP4-25 was the first McLaren car to be independently built by McLaren only after being demoted to Mercedes customer team following Mercedes F1 rejoined as a full-constructor team by purchasing 75% stake of Brawn GP ownership.

Design

• The Red Bull Racing team complained to the FIA about the legality of the MP4-25's rear wing. The design uses a small "snorkel" air scoop mounted in front of the driver that channels air through a duct in the cockpit and towards the rear of the car. Changes in the pressure in the duct, in combination with small slots on the rear wing, causes the wing to enter a stalled state at high speed, reducing aerodynamic drag and allowing the car as much as an extra 6 mph (9.7 km/h) on straights.

• The effect is controlled by the driver covering up a small hole in the cockpit with his left leg – this is not considered by the FIA to be a moveable aerodynamic device, which would be banned under the technical regulations. Known internally as the RW80 it is widely called the "F-Duct" system because of the location of the 'F' in the sponsor's name directly on the snorkel.

Performance

• the same power plant that brought McLaren and Lewis Hamilton the world title in 2008, tipping the scales at just under 210 pounds, the slightly heavier MP4-25 will make its first on track appearance in Valencia, Spain on February 1 along with many of the other F1 competitors for some pre season testing.

Production

• Sir Lewis Hamilton's 2010 Turkish Grand Prix-winning McLaren-Mercedes MP4-25A Formula One car has been listed for sale, with price expectations in excess of US$5,000,000 (AU$6,500,000). Registered through RM Sotheby Auctions, it is unclear who currently owns the car.