The 2011 BMW Z4 sDrive35is debuts next month at the 2010 Detroit Auto Show.

2011 The BMW Z4 sDrive35is

The 2011 BMW Z4 sDrive35is debuts next month at the 2010 Detroit Auto Show. The BMW's N54 direct-injected, twin-turbocharged inline-6 remains in the 2011 Z4 sDrive35is, but engineers have increased airflow while simultaneously cranking up boost pressure. As such, the engine graduates from the 300/300 horsepower/torque club to 335 hp at 5,900 rpm and 332 lb-ft of torque from 1,500-4,500 rpm. And on the overboost, torque rises to 369 lb-ft, according to BMW.

The latest Z4 model is characterized by instantaneous response to the accelerator pedal, fantastic sounds, and a free-revving spirit. The new Z4 sDrive35is is faster and better than any other model in the Z4 line-up: powered by a twin-turbocharged 3.0-liter inline six with increased air flow and more boost pressure.The result is an output of 335 HP at 5,900 RPM and a peak torque of 332 lb-ft from 1,500 RPM to 4,500 RPM. The sprint from 0 to 60 MPH is made in just 4.7 seconds, while the car’s top speed is limited to 155 MPH. The engine is mated to a 7 speed Double-Clutch Transmission with SPORT and SPORT+ modes for crisper shifts and more performance driving.

Footage of the interior on BMW's new 2011 Z4 sDrive 35is.

Woodcliff Lake, NJ – December 12, 2009, 6pm EST… 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 (NAIAS) in Detroit. It arrives at authorized BMW Centers in Spring 2010.

The enhanced engine management system of the Z4 sDrive35is also includes an electronically-controlled overboost function to briefly increase torque under full load by another 37 pound-feet. This temporary torque peak of 369 pound-feet gives the car a significant increase in acceleration.

The Z4 sDrive35is borrows the M Aerodynamics and adaptive M Suspension from the larger cars. The new Z4 rides on lightweight 18 inch five spoke alloy wheels, a striking front bumper with a matte aluminum trim bar in each outer air intake, a rear bumper with accentuated surrounds on the tailpipes, and a rear diffuser finished at top in body color and black textured surface underneath. On the interior BMW added a new M leather steering wheel with gearshift paddles, an M driver’s footrest, and sport seats.

We've noted that the Z4 sDrive 35i is aless frenetic car to back roads than its earlier Z4 (and Z3) predecessors) with a predictible, stable character that makes it easy to build up to a quick pace. However, we hope we're reading BMW right in guessing that company engineers tried to go a little edgier with the chassis calibrations for the sDrive35is. Notably,The Electric Power Steering (EPS) on the BMW Z4 sDrive35is features very sporty programming, focused to provide intense and clear steering feedback to the driver. This enables the driver to turn-in with remarkable precision and confidence at all vehicle speeds.

Sales of the 2011 BMW Z4 sDrive35is will begin in Spring 2010. Pricing will be announced closer to launch date.

.