Nobody will argue that Audi makes high-performing cars packed with high levels of technology and class-leading appointments. When the conversation takes on a green tinge, however, Ingolstadt seemingly falls short. Audis have been packing on the muscle and the weight, while BMW's been at work discovering ways to decrease carbon emissions and innovate in the name of fuel efficiency. Audi fires back, citing their fleet's CO2 emissions which are lower than Mercedes or BMW, with more tech to come. Tweaked engines, hybrid and alternative-fuel powertrains, and fuel-saving techniques like stop/start and brake regeneration are all coming to the Audi range soon. In the race for the top, someone will inevitably end up on the bottom. Audi just hopes that they can claw up that slope, Quattro-like.
[Source: Auto News - sub req]