Audi Q8 Sportback 55 e-tron quattro Price in USA Starting From USD 75,000 to USD 80,000. Audi Q8 Sportback 55 e-tron quattro Comes with AWD 300 kW (408 hp) Motor Power with 200 km/h (124 mph) max speed and Acceleration of 5.6 sec 0-100 km/h. It has 106 kWh Liquid-cooled Li-ion 400V battery. It available in both AC or DC charging option.