Typical German

allways a little bit over the top with there technology =D>
Would still think, that it would be easier to measure the torque in the wheelgun.
I could see that they maybe measure a pessure spike in the wheelgun, when the wheelnut stops
turning.
But this is pure speculation on my side, I don´t know for sure, but I take my hat off and be impressed, if they measure "on board" (inside the car)