The new Audi A6 road-testedIt's back with a roar. The Audi A6, the seventh generation of the popular executive sedan. And it is much more lightweight thanks to aluminum and high-tech steels. In fact, it weighs 80kg less than its predecessor. A thermal management system, start-stop and energy recovery features add up to better fuel consumption. It goes from zero to 100 kilometers an hour in 5.5 seconds. And it comes with a wide-range of attractive optional extras, from driver aids to massage seats.