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BMW to offer four-cylinder diesels in North America to improve fuel efficiency

BMW will offer four-cylinder diesel engines in North America as it seeks to improve fuel efficiency and match the performance of its current six-cylinder gasoline engines. BMW is considering diesels in a range of models, including its 1 series, 3 series and 5 series sedans and possibly the X3 crossover and Z4 roadster, said Tom Baloga, vice president of engineering for BMW of North America. "You're going to see it in the 3 series, and the 5 series is a good possibility," Baloga said.

Driven: Mitsubishi i

We first reviewed the diminutive Mitsubishi 'i' when it was unveiled at the 2005 Tokyo Motor show and, while we were pleased with the overall design of the car, we were disappointed that Mitsubishi had chosen not to export the innovative vehicle to other markets. But with the popularity of this compact urban cruiser soaring in Japan and the recent availability of the vehicle in the UK, we now had a chance to give it a go on the often traffic crippled streets of central London. Congestion in urban milieus is not a new phenomenon, but even with London's congestion charging system extorting money from drivers it doesn't seem to be getting any better.

The movers and shakers behind the new 2014 Corvette

You've heard what Autoweek editors have to say about the 2104 Corvette. Now find out what some of the men behind the Stingray think of it. In this video, Autoweek speaks to Corvette chief engineer Tadge Juechter, product manager Harban Charles and the Bob Lutz about the inspiration behind Stingray's design and the future of automotive performance.