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More Power! Get the details on the potent Porsche 911 GT3 RS 4.0

Porsche has ramped up the already heady performance of the 911 GT3 RS through the adoption of a new, naturally aspirated 4.0-liter version of the company's sturdy, horizontally opposed flat six-cylinder engine. The unit kicks out 50 hp more than the 3.8-liter six-cylinder used in the existing 911 GT3 RS. This mill claims 500 hp at 8,250 rpm, a figure which makes the speedster the most powerful naturally aspirated road-going version of the 911 ever.

Andy Priaulx interview

By Motor Shows 14 December 2007 09:00 His racing season might be over for this year, but 33-year-old Andy Priaulx has barely stopped since clinching his third consecutive World Touring Car crown – an incredible feat in a series packed with ex-F1 drivers and touring car winners from various championships. But in-between the award ceremonies, end-of-season parties and test sessions, CAR Online caught up with the Guernsey-based racer ahead of his star turn at this weekend’s Race of Champions. Held at Wembley Stadium on 16 December, RoC sees drivers from disciplines as diverse as Nascar and F1 race head-to-head, country-against-country on what looks like a giant Scalextric set.

Daihatsu Kopen concept stars at the Tokyo Motor Show 2013

This modest Daihatsu Kopen concept is indisputably one of the stars of the Tokyo Motor Show 2013. As the name suggests, it’s an all-new version of Daihatsu's tiny but fun, folding metal hardtop roadster sports car. And yes, it is now spelt with a K rather than a C.