This is a run I did in my 435i (F32) with MPPK:
I installed the PPK when the car had 1000km and so it has been run-in properly. My 80kph to 200kph is around 11.9 seconds making it much quicker than the M235i. Also this run was done at an altitude of 1,753 metres (5,751 ft) above sea level. I would say that the 250kw that BMW are claiming is actually closer to 260kw.
To all the 435i owners out there, get the PPK it is the best money you will ever spend!