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

New Porsche 911 GT3 (991) technical highlights (video)

Ahead of its arrival with customers, Porsche has delivered a new video of the GT3 designed to make it clear just how some of its technical highlights work to make the GT3 swifter and more nimble than ever before. Power is of course the key to the GT3 – 468bhp and 324lb/ft of torque – but the power is no good unless the GT3 can put that power down as efficiently as possible in all circumstances. Porsche assert that the GT3′s chassis is engineered for Motorsport, and key elements of the new GT3 make it even more able.

Reuss: GM considering 'something really fun' for Buick

Buick dealers still salivating over the Riviera concept that General Motors unveiled at last month's Shanghai auto show should take a deep breath: There's little chance that the flashy coupe will ever grace a Buick showroom. But they should view the Riviera -- which GM says points to the brand's design direction -- as a signal that GM is serious about adding pizazz to the Buick lineup now that the 110-year-old brand, which barely survived GM's bankruptcy four years ago, is getting comfortable in its born-again skin. "We've very carefully built Buick back to a brand that has respect," GM North America President Mark Reuss told Automotive News.

Daimler agrees to unload remaining Chrysler stake

Daimler AG announced today that it has reached an agreement to unload its remaining 19.9 percent stake in Chrysler LLC. "Daimler's remaining 19.9 percent shareholding in Chrysler will be redeemed, and Daimler will forgive repayment of the loans extended to Chrysler, which were already written off in the 2008 financial statement," Daimler said in a prepared statement. All told, Daimler will write off $700 million as a result of the deal, according to the statement.