Take a standard sDrive35i, make the 7-speed DCT gearbox and M Sports suspension standard and modify the magnificent straight-six engine to develop 250 kW and 450Nm, with the ability to increase to 500Nm by means of an overboost function and you get the BMW Z4 sDrive35is, the new flagship model in the Z4 range.

The BMW Z4 sDrive35is will make its world debut at the 2010 North American International Auto Show (NAIAS) in Detroit, and parallel to the market launch of this high-performance roadster, will be the M Sports Package made available for all derivatives of the Z4 roadster.