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Detroit Auto Show roundup

The 2012 NAIAS in Detroit, MI has proved to be exactly the dose of salts the US auto industry so desperately needed after a few very lean years for the event. Numerous concept and production cars made their debuts in the halls of COBO and, as ever, Car Design News was on hand to provide our in-depth live show coverage. Here's a full rundown of our reportage from NAIAS 2012: Acura Acura NSX Concept: Living up to the name Cadillac Cadillac ATS: Finally breaking into the premium mainstream?

Toyota Prius: Battery bottleneck limits Prius Output

Battery bottlenecks are hurting efforts to boost output of the Toyota Prius to meet booming demand, and the problem will likely persist into next year, a Toyota official says. "The new Prius model has been excessively popular, inconveniencing some of our customers, and the factories are working overtime at full capacity," Takahiko Ijichi, Toyota senior managing director, said Tuesday at the company's quarterly earnings announcement. "Unfortunately, the batteries are not catching up with demand.

BMW M6 Gran Coupe (2013): first official pictures

This is the BMW M6 Gran Coupe. Matching the M6 coupe's twin-turbo powertrain to the 6-series Gran Coupe's slinky body, think of it as a sexier, slightly faster alternative to the three-box M5 saloon. The M6 Gran Coupe is on sale from 25 May 2013, after a Detroit motor show reveal in January.