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

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.

Remaking the Ford Mustang

By the time the next-generation Ford Mustang debuts in 2014, it will have worn a decidedly retro look for nearly a decade. From the styling to the chassis to the raw power, the pony car remains a throwback and a simple, true American pleasure. Expect that mantra to continue, but the execution will evolve, moving the Mustang forward into a broader, potentially global audience as it nears a half century of performance.

Watch a flying Aventador crash in London traffic

Sometimes you just get lucky. In this case, it's you, the Autoweek reader who's doing the lucky-getting. You see, usually, when some weenie dings his flat-black Aventador, the most you can hope for is a photo or two of the carbon-intensive carnage.