The S6 is like a young Labrador Retriever that needs to be allowed to stretch its legs, set free in some open space to exercise. That’s where the driver will come to appreciate this sedan’s tremendous balance, evidenced by the S6’s ability to hunker down in the corners with negligible body roll and just a hint of understeer. Audi is aimed at convincing shoppers that AWD is just as important to handling and grip as it is to snow and ice, a suggestion that quickly bears merit when the hardware is tested on a twisty, dry road.