BMW has unveiled the details of a new flagship model to the BMW Z4 range, the BMW Z4 sDrive35is.

This offering has an even higher standard of performance ensured both by the modified straight-six power unit with BMW Twin Turbo Technology and High Precision Injection, on the one hand, and by BMW’s seven-speed Sport Automatic with double clutch operation and the M Sports Package including the adaptive M Suspension likewise featured as standard.

Appropriate optimisation in engine technology increases maximum output of the 3.0-litre power unit to 250 kW, whilst peak torque is 450Nm, increasing briefly with the Overboost function to 500Nm. 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.