Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Ruf Stormster concept (2009): the electric Porsche Cayenne

Ruf might be a tiny German tuner, but it’s just unveiled the first ever electric Cayenne. Called the Stormster it's Ruf's second battery-powered Porsche, uses the same motor as the company's electric 911, weighs close to 2.7 tonnes and hits 62mph in ten seconds. No at all – in fact, earlier this week Ruf took its 676bhp GT2 to 229mph at the Nardo test track in southern Italy.

2012 Audi A6 Allroad UK price from £43,145

2012 Audi A6 Allroad UK price announced Just days after the reveal of the new A6 Allroad, Audi has announced that the 2012 A6 Allroad will start at £43,145. In the midst of the reveals at the Detroit Auto Show last week, Audi revealed the 2012 A6 Allroad in Germany, and a decent-looking Allroad it is too. Unlike previous iterations of the A6 Allroad, the 2012 A6 Allroad looks almost as sleek and appealing as the regular A6 Avant, despite its butch plastic cladding and skid plates.

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.