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Audi reveals a new turbo engine for Euro-spec A5 coupe

Audi is putting a new engine in the sleek A5 coupe, targeting better fuel economy. As of now, though, it's not scheduled for the United States. The turbocharged four-cylinder unit will displace 1.8 liters and deliver 170 hp.

Video: Jan Kaul explains Mercedes-Benz A-Class' interior

Mercedes-Benz has released a video exploring the interior of its new A-Class featuring the designer who headed the project. Jan Kaul explains in the video how the inspiration behind the interior was the subject of aviation, the same inspiration that produced the Concept A-Class show car. "The theme running through the design of the A-Class was definitely ‘less is more,'" says Kaul.

Mazda's rotary engine stalled, not forgotten

Development of the next-generation rotary engine from Mazda Motor Corp., first unveiled three years ago, is making slow progress despite missing emissions targets. A top Mazda powertrain executive said today that the 1.6-liter rotary engine, called the 16X, is about 30 percent more fuel-efficient than the current rotary engine used in the RX-8 sporty car. In fact, the 16X so far performs slightly better than Mazda's standard two-liter gasoline engine, said Mitsuo Hitomi, general manager of the Japanese carmaker's powertrain division.