We have been informed by reliable sources that the recently spied Z4 will not be an ///M model or even an M Sport model. The car will feature more aggressive front and rear bumpers. The black wheels shown will be the correct style but they will not be offered in that finish.
We have also recently learned that this performance oriented vehicle will feature a bump in engine performancesimilar to the 7RR option on the X6 35i to 320hp and 330 lb-ft of torque. This car will be available in the US market.
(Last 2 photos from Autobild)