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Jenson Button in McLaren P1 (2013) supercar fly-by

McLaren’s P1 supercar trundled out for its first official drive-by today, when F1 driver Jenson Button drove it into McLaren’s Woking citadel before unveiling his 2013 race car. The stunt confirmed that the P1 can manoeuvre on electric power alone, unlike Button’s MP4-28: the race car’s hybrid KERS system is used to deliver a short power boost to supplement the V8. McLaren predicts the P1’s electric-only mode is a capability its forthcoming Ferrari rival (codenamed F150) won’t be able to match.

Audi RS6 Avant (2012) first pictures of new super-wagon

In the battle of super-estate Top Trumps, Audi has just nicked the goalposts – in a suitably commodious family wagon. Despite boasting two fewer cylinders and 1200cc less than the old V10 RS6, the new RS6 Avant is even faster over the 0-62mph sprint, and will top out at over 190mph. Wow!

How VW's XL1 will make your next Golf lighter, faster and more frugal

VW will only build 250 examples of the XL1, its super-streamlined two-seater than scores a combined 314mpg thanks to its plug-in hybrid diesel engine, lightweight construction and low-drag design. Each punter will have to put up around €100,000 for the privilege of saving money on fuel – but don’t worry, because every car across the VW Group will benefit from the lessons learned, all by 2020. Is my next VW likely to be a hybrid?