Originally Posted by AusF20
I am driving the 125i and do drive it with purpose. It is a turbo, so yes in theory there is always some lag, however it is not really noticable in the 125i (probably due to the better torque of the 2lt). If you drive in comfort mode it is sometimes there, I have not suffered from it in Sport when driven
Even the 335i has lots of turbo lag. Test drove one on a local gokart track.
The lag on the 116i is most noticeable in hairpin turns, where you are going directly from engine braking to wide open throttle. Cars with naturally aspirated engines with worse power/weight ratio gain several car lengths at those corner exits.