The new A6 hasn’t even gone on sale in the United States yet, but Audi is already expanding the lineup in Europe. Both the sedan and wagon are now offered as plug-in hybrids based on a four-cylinder engine. A major upgrade over the previous PHEV version is the battery, which now has a net capacity of 20.7 kWh, or about 45 percent more than before. That translates to a solid electric range, potentially enough to handle daily driving without using the engine.
