KBB.com Best Buy Awards. Delivers 25 Highway MPG and 19 City MPG! This Audi Q7 delivers a Intercooled Supercharger Premium Unleaded V-6 3.0 L/183 engine powering this Automatic transmission. Window Grid Diversity Antenna, Wheels: 19 5-V-Spoke Design, Wheels w/Silver... via LIUsedCars