BMW’s Roadster Gets Higher-Performance Model for 2011

Combining classic proportions with modern features, the BMW Z4 Roadster enjoys the top spot in its market segment.

The BMW Z4 sDrive35is-1

Combining classic proportions with modern features, the BMW Z4 Roadster enjoys the top spot in its market segment. Now, the new BMW Z4 sDrive35is distills the Roadster’s performance potential to produce one of BMW’s fastest and best-handling Roadsters ever. The BMW Z4 sDrive35is is making its world debut as a 2011 model at the 2010 North American International Auto Show in Detroit. It arrives at authorized BMW Centers in Spring 2010.

The latest Z4 model is characterized by instantaneous response to the accelerator pedal, fantastic sounds, and a free-revving spirit. The engine features increased air intake flow and increased boost pressure to release more power with the same standard of efficiency. The combination of twin low-mass turbochargers and High Precision direct injection offers an output a naturally-aspirated engine would only be able to provide through more cylinders and larger displacement. The turbocharger system developed for the engine of the new BMW Z4 sDrive35is maintains a high output throughout the entire engine speed range. Nominal peak torque is increased to 332 lb-ft from 1,500 rpm to 4,500 rpm. Maximum output of 335 hp is delivered at 5,800 rpm.

The enhanced engine management system of the BMW Z4 sDrive35is includes an electronically-controlled overboost function to briefly increase torque under full load by another 37 lb-ft. This temporary torque peak of 369 lb-ft gives the car a significant increase in acceleration. The BMW Z4 sDrive35is will complete the sprint from 0 to 60 mph in just 4.7 sec. Top speed of the BMW Z4 sDrive35is is limited electronically to 250 km/h or 155 mph. [via BMWUSA]

The BMW Z4 sDrive35is-2

The BMW Z4 sDrive35is-5

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