• First leg of Audi Mileage Marathon started in New York * Audi Q7 with ultra low emission system taking part in major real-life test * Best actual fuel efficiency from 7.4 liters per 100 kilometers (31.79 US mpg)   The new Audi Q7 3.0 TDI with ultra low emission system is the cleanest diesel in the world, and an extremely economical form of propulsion into the bargain. This was demonstrated on the very first leg of the Audi Mileage Marathon on Monday, from New York to Washington. The best participants in this major real-life test criss-crossing the American continent achieved an average fuel consumption of an impressive 7.4 liters per 100 kilometers (31.79 US mpg). The... read more