's forthcoming Scout line of battery-powered sport utility vehicles and pickup trucks is adding gasoline-fueled internal combustion engines to the mix.

Scout Motors, VW's to finally become a significant player in the US auto market, will offer its new Traveler SUV and Terra pickup in plug-in hybrid versions in addition to battery-only configurations. The gas-electric models will feature a combustion engine to automatically recharge the battery as the vehicle rolls down the road, the company said at a splashy ceremony to reveal the concept vehicles near Nashville on Thursday.