Driving the Audi Q3 Turbo Petrol Automatic Powering the Audi Q3 is this punchy 2.0-litre (40 TFSI) turbocharged petrol engine that puts out 187 BHP and 320 Nm of torque. It is mated to a 7-speed dual-clutch S tronic transmission with Audi’s Quattro AWD system: