Did a few more 100-200 kph "runs", this time with a rolling start from 85/90 km/h. Everything else the same. Sport Xtraboost mode, ESC in Traction and transmission in S mode. No modifications.
Best time
100-200 km/h: 15,65s (corrected to inclination 15,51s)
As expected, the 10s of Xtraboost used from the top has a significant effect on the time. Last time I had measured from a 0-200 run, so the xtraboost was mostly used in the beginning of the run and had less effect in the 100-200 range. A rolling start is a little more representative of real world usage.