Originally Posted by DiscoZ
Mean the 'ring times. Both 8:15. I am sure the 1 series M is faster, it should be given it is 6 years newer, only weighs ~150lbs more and has more torque, HP, better tires etc. Stock acceleration is about the same too... however the N54 / 55 are much more tunable.
Like I said, not much difference anyway and no need. The Z4MC is a fantastic work of art and I would love to have one next to my 1M at the garage. They really are raw and simple driving tools but so different at the same time due to engines and body designs.