I would suspect (since I can't prove it) that there is some level of bias to this or any other report (fanboy, pressure, bribe?, etc) but as a BMW owner, we can compare what have by driving (test, borrow, previously owned) other cars in the segment.
If you can honestly collaborate or dispute what was written about your car, that's what counts.
My 1st BMW-bought: Munich 2013 F30 335i, RWD, Alpine White, Black Leather, M-Sport Line/Pkg, Dynamic Handling Pkg (Adaptive M Susp, Var Sport Steering), Prem Pkg, Tech Pkg, 403M (Bridgestone Potenza S001 RFT 225/40/R19 255/35/R19), Sport auto w/paddle shifters, Heated front seats, Harman Kardon, Aluminum Hexagon Trim w/matte Estoril Blue accent
Std: Xenon Adaptive Headlights, Sunroof, Alarm
Mods: Dealer tint, DIY lower intake grill guard, ASS recoded
Hergestellt in Deutschland