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2011 BMW Z4 sDrive35is Preview

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One of the first stars of next month’s 2010 Detroit Auto Show has been revealed this weekend in the form of the all-new 2011 BMW Z4 sDrive35is. Coming in as the new range-topper for the Z4 lineup, the sDrive35is distills the roadster's performance potential to produce one of BMW's fastest and best-handling models ever.

The key to the roadster's stunning performance is an uprated engine, which sports increased air intake flow and boost pressure to release more power. The combination of twin turbochargers and direct injection technology offers an output a naturally-aspirated engine would only be able to provide through more cylinders and larger displacement.

Nominal peak torque is increased to 332 pound-feet from 1,500 rpm to 4,500 rpm. Maximum output of 335 horsepower is delivered at 5,900 rpm.

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.

According to BMW it will sprint from a standstill to 60 mph in just 4.7 seconds and easily reach an electronically controlled top speed of 155 mph.

Most importantly, the performance gains come at no real cost to economy, with the roadster’s fuel economy figures expected to match those of the BMW Z4 sDrive35i equipped with a dual-clutch transmission on the EPA test cycle.

Helping to keep fuel consumption to a minimum is a raft of BMW EfficientDynamics technologies, including brake energy regeneration, electric power steering, and on-demand operation of engine accessory units.

Other modifications include a unique exhaust system and a special launch control system for the 7-speed dual-clutch transmission. Also fitted as standard is the new M Sport upgrades for the Z4 range, which includes a new bodykit and suspension kit that lowers the ride height almost 0.4-inches and features electronically controlled shock absorbers.

Special 18-inch light-alloy wheels in five-spoke design round off the sporty character of the Z4 sDrive35is, while 19-inch light-alloy wheels are available as an option. In addition to its unique wheels, the new model is further distinguished by a unique 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.

The 2011 BMW Z4 sDrive35is is set to go on sale in the spring of 2010.

[BMW]

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Comments (10)
  1. I can't wait to see the first $80k BMW Z4. What happened to "entry-level roadster", BMW?
     
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  2. I love BMW.Thanks for this info.
    PA Auto Insurance
     
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  3. This looks fantastic, still begs the question, will there be a m-version?
     
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  4. Love the front end of this variant.
     
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  5. I like how it's been retuned to make just barely more power than the 3.7L VQ and Audi's supercharged 3.0L V6. Got to one-up the competition, even if the hp advantage can be counted on one hand.
    clarkma5, maybe (hopefully?) however they retuned the engine to get an extra 12% of horsepower out of it also may have given it a noticeable surge in the powerband. That's definitely something I notice when running my 1.8T at REVO stage 1 versus stock--not only is there more power the REVO way, but there's a much more noticeable surge of power at around 3000 rpm.
     
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  6. I've already boosted my 09 Z4 S35 to almost 400HP using Juice Box3 ECM, for a cost of $600.
     
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  7. BMW took the cover off their latest Z4 Roadster model: sDrive35is. As many have mentioned, the upgrade and updated roadster sports M-like capabilities, minus the M badge. The sDrive35is carries under the hood an upgraded version of the popular N54, the award winning six-cylinder 3.0 liter twin-turbo engine found in the regular 35i roadster.Even though it doesn’t carry the M badge, the BMW Z4 sDrive35is includes new M Sport upgrades such as adaptive M Suspension and M Aerodynamics. The adaptive M Suspension combines a ride-height reduction of 10 millimeters (almost 0.4”) with electronically controlled shock absorbers.
     
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  8. When BMW introduces an elegant and fun-to-drive little 4 cylinder roadster that costs under $35K and gets 40MPG, that will be news worth reading.
     
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  9. I wonder how effective BMW's KERS (brake energy regeneration) will be.
     
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  10. Hi Guy's,
    That's definitely something I notice when running my 1.8T at REVO stage 1 versus stock--not only is there more power the REVO way, but there's a much more noticeable surge of power at around 3000 rpm.
     
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