Power enough, the impact wrench. If I did not have to lift on each tire individually with the jack the car, I would gewessen almost as fast as in Formula One.
Unfortunately, a small negative thing: - Torque can not be adjusted. Thus, the screws are tightened already very strong when tightening. Here you have to work a bit with tact. Tighten with impact wrench and then with a torque wrench the rest.