VW's head honcho, in a translated interview with Auto Motor und Sport, stated:
Apparently, Winterkorn is not satisfied with the performance of lithium-ion battery technology and says that even under ideal conditions, electric vehicles often have a range of less than 150 kilometers (93.2 miles). This, according to Winterkorn, is simply insufficient but he did say that lithium-air batteries might hold the key to future.I am firmly convinced that plug-in hybrids are the right solution for the next ten years. You can drive 50 to 60 kilometers all-electric and have the full flexibility of an internal combustion engine. The plug-in hybrid will be there for all platforms in the Volkswagen Group.
[Source: Auto Motor und Sport via Green Car Reports]