Audi AG will build a vehicle assembly plant in North America and is said to be considering an additional plant as it prepares to add capacity in its charge for the top luxury automaker spot. According to Automotive News, the Ingolstadt-based firm is knocking out the final details of its new plant, including its location, capacity and, importantly, which vehicles will be built there.DELIVERY PROBLEMThe German manufacturer hopes to increase its sales in the US by as much as 20 percent in 2011. However, company CEO Rupert Stadler said Audi’s delivery times “are still too high” with dealers “currently ask(ing) for more cars than we can deliver”.Stadler said decisions relating to the new plant would be finalised by 2014, while the company is rumoured to be considering a second plant for the production of engines and transmissions. This plant will be shared with its VW stable mate. By Audi’s “Strategy 2020” the brand is to double its global sales by 2020. It was also revealed that the company’s original goal to sell 1.5 million cars in 2015 will be achieved a full year earlier than planned.