The new Q3 also features Cylinder on Demand technology, which helps to improve fuel economy. The 'Ultra' variant consumes just 5.5 liters of gasoline per 100 kilometers. Drive it! tested the Q3 with the strongest engine: a 2-liter TFSI with an output of 162 kilowatts that propels the car from 0 to 100 kilometers an hour in 6.3 seconds.