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CAR tech: who's to blame for your car's terrible fuel economy?

In early 2013 Audi lost a case brought by the Advertising Standard Agency (ASA) because of ‘misleading’ fuel economy figures used in an advert, after a customer complained they couldn’t get anywhere near the 68mpg quoted. The court case once more exposes the yawning gap between officially sanctioned mpg figures and those experienced by owners. A recent study by the Independent Council on Clean Transportation (ICCT) looked at cars sold in the UK and Europe, and discovered the difference between official mpg figures and real-world driving had grown from 8% in 2001 to a barely believable 21% in 2011.

Mercedes to make E-Class Coupe Estate?

The Mercedes ConceptFascination - Could make it in to production as an E-Class Coupe Estate Car makers are searching for every niche they can fill with their cars, particularly at the premium end. Audi and Mercedes are big players (we still think the Mercedes R-Class a niche too far), and BMW play the game too, with cars like the BMW X6M and the new BMW 5 Series GT. If the Mercedes E Class Coupe Estate does go in to production it will bring to five the number of models based on the same Class – the saloon, the coupe, the cabriolet and the estate plus this new Coupe Estate.

Video: The Porsche Panamera Sport Turismo concept build process

Porsche has released a video featuring Style Director Michael Mauer charting the design process of the Panamera Sport Turismo concept. The 10-minute YouTube video, which also features General Manager Advanced Design Style Mitja Rorkert, follows the build process through each modeling phase right up until the presentation of the show car at this year's Paris motor show. "It always presents a special challenge when we develop a new kind of car for the Porsche brand," says Mauer, "precisely because we haven't been in the segment before, and the question of whether it matches the Porsche brand always looms in the background." We were impressed at the Panamera Sport Turismo concept's unveiling, particularly with its stance and detail execution, so the video is a chance to see just how this concept came into being.