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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?

Future products: Kia seeks lively, upscale look

Kia's redesigned Optima sedan and the Cadenza replacement for the Amanti, both due next year, reflect an emphasis on creating a livelier and more upscale look for the once-bland brand. Indeed, styling has been a crucial element of Kia's new-product push in the past 18 months. The team at Kia Design Center America near Los Angeles--part of the automaker's global design network led by onetime Audi design chief Peter Schreyer--has helped set the new styling direction.

Porsche Panamera Diesel gets power boost for 2014

An updated Porsche Panamera Diesel was missing from the range when Porsche facelifted its plus-size super-saloon earlier in 2013. But don’t think Porsche had quietly dropped the most anti-purist model in its line-up. Stuttgart has in fact been tickling up a much more powerful, faster version of the oil-burning Panamera.