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Posts Tagged ‘Efficient Dynamics’

First Look: BMW Z4 sDrive35

Twin turbos, seven-speed automatic, and no revised M-model?

by on Jan.04, 2010

No turning back from traditional performance marketing just yet?

It almost takes longer to pronounce the name, than it does for the new 2010 BMW Z4 sDrive35 roadster to reach 62 mph from a stop — 4.8 seconds, according to the Bavarian maker of mostly coupes, sedans and sport utility vehicles.

During the 2010 North American International Auto Show, BMW will unveil its latest iteration of a classic roadster with its inline six-cylinder engine and dual turbochargers.

Power output is rated at 250 kW/340 horsepower, and peak torque is 450 Newton-meters or 332 pound-feet. With a seven-speed Sport automatic transmission featuring double clutches – first time in the U.S. — the sports car is more than adequately quick. And, once again, BMW is at pains to point out, it comes with no increase in fuel consumption. Whether the price increase from $52,000 remains to be seen.

At 9.0 liters/100 kilometers (equal to ~26 mpg U.S.) and 210 grams CO2 per kilometer in the EU test cycle, both fuel consumption and CO2 emissions are the same as on the BMW Z4 sDrive35i with the older six speed Sport Automatic.

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Greenish?

Environmental pressure groups, such as the Union of Concerned Scientists, have been hammering BMW (and other companies) for what they deem are excessive increases in power-to-weight ratios while only pursuing token fuel economy and carbon dioxide reduction measures.

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