Audi Q7 Stats. Audi q7 suv (2015 onwards) specifications. Specs audi q7 v12 tdi 500 ps. Audi Q7 4L Facelift from www.car.info Brake mean effective pressure ˜ 21.2 bars. Mean effective pressure ˜ 20.5 bars. Audi q7 3.0 tdi quattro s line. Audi Q7 4L Facelift Mean piston speed ˜ 11.4 m/s. Combined electric power consumption in kwh/100 km*: Audi q7 3.0 tdi quattro s line. Mean effective pressure ˜ 20.5 bars.