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Video shows Audi R18 'long tail' e-tron quattro's blistering Monza run

Audi has had a pretty solid run at the 24 Hours of Le Mans over the past decade, but we're glad they keep pushing the envelope. That's how they keep devising road-going spaceships like the staggeringly fast R18 e-tron quatto equipped with a “long tail” aerodynamic package. This quick video of the “long tail” hybrid testing at Monza gives us a preview of what we can expect at Spa next month -- and hints at what we'll see at Le Mans in June.

McLaren MP4-12C GT3 (2011) track testing begins

McLaren has begun testing its latest track weapon, the MP4-12C GT3 ahead of the 2012 FIA GT3 season.  How different is the MP4-12C GT3 from the roadgoing edition? The MP4-12C GT3 is based on the standard machine but modified for FIA GT racing by McLaren GT - a joint venture between McLaren Automotive and CRS Racing, a UK-based team currently competing in FIA GT with Ferrari F430s.  Externally you'll notice the race-spec fixed rear wing, undertray diffuser, front splitter, louvres and vents. Underneath there's a new suspension system, ditching the road car's linked suspension for FIA-compliant conventional dampers and anti-roll bars. Akebono is supplying race-specific brake components, and Bosch Motorsport has installed its ABS system. The car sits 100mm wider on its new suspension and has suitably flared bodywork as a result.  It's still the McLaren's bespoke 3.8-litre twin-turbo V8 engine, tuned for racing.

BMW M6 Gran Coupe: Price from £97,490 (+ video)

The new BMW M6 Gran Coupe - officially revealed this week – will cost from £97,490 when it goes on sale in May 2013. The M6 Gran Coupe gets the same, very convincing, looks of the regular Gran Coupes, but with added visual butchness thanks to a front spoiler, flared wheelarches, side skirts, rear diffuser and a carbon fibre roof. That promised aggression is reinforced by the M6 Gran Coupe’s powerplant that comes from the M6 and M5 with a 4.4 litre twin turbo V8 delivering 553bhp and 50lb/ft of torque – available from 1,500 to 5,750rpm – which is enough to get the M6 Gran Coupe to 62mph in 4.2 seconds.