The 2012 Audi A6 offers very good fuel economy even when it's powered by a terrifically quick V-6, and especially in its base four-cylinder configuration.
To get the best fuel economy, though, you'll have to endure Audi's continuously variable transmission. We haven't driven this version, but the powertrain isn't changed much from the last-generation cars--and we expect the same typically sluggish response and powertrain drone we've sampled in other CVT Audis.
Still, with the CVT, the 2012 A6 earns an EPA-certified 25/33 mpg, an exceptional figure for a luxury car, and just a few ticks below fuel-conscious sedans like the 2012 Toyota Camry, Hyundai Sonata and Kia Optima.
The supercharged, direct-injected V-6 powerplant and its standard all-wheel drive deliver 19/28 mpg.Audi's promising both hybrid and diesel versions of the new A6 for the North American market, but neither is due to arrive before the 2013 model year.