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Video: The Porsche Panamera Sport Turismo concept build process

Porsche has released a video featuring Style Director Michael Mauer charting the design process of the Panamera Sport Turismo concept. The 10-minute YouTube video, which also features General Manager Advanced Design Style Mitja Rorkert, follows the build process through each modeling phase right up until the presentation of the show car at this year's Paris motor show. "It always presents a special challenge when we develop a new kind of car for the Porsche brand," says Mauer, "precisely because we haven't been in the segment before, and the question of whether it matches the Porsche brand always looms in the background." We were impressed at the Panamera Sport Turismo concept's unveiling, particularly with its stance and detail execution, so the video is a chance to see just how this concept came into being.

2015 Ram ProMaster City to join commercial lineup

Ram has announced that it will add the Ram ProMaster City van to its commercial lineup for 2015, growing the range from six vehicles to seven. We've known that this vehicle has been in the works for years, but this is the first time a sales time frame has been released. Much smaller than the 2014 Ram ProMaster -- smaller even than that Caravan-based C/V Tradesman -- the ProMaster City will be based on the petite Fiat Doblo.

Ram beefs up heavy-duty trucks for more towing

The Chrysler Group is upgrading its heavy-duty Ram pickups for the 2013 model to deliver what it says will be class-leading towing capacity. Diesel-powered versions also adopt selective catalytic reduction exhaust treatment to cut emissions and extend maintenance intervals. The automaker has also created a dedicated commercial vehicle team within the Ram brand to boost its business with fleet and work truck buyers.