الاثنين، 4 مارس 2013

bmw i454

 The Z4 is now offered in three different models: the Z4 sDrive28i, which comes with a 255-horsepower, 2.0L 4-cylinder engine; the Z4 sDrive35i, powered by a 300-hp, 3.0L turbocharged six; and the sDrive35is, which gets a high-performance 335-hp turbo six.

Each of these powertrains delivers satisfying performance with the standard 6-speed manual transmission--including a linkage that's still among the best in the business--but the 7-speed dual-clutch (DCT) gearbox in the sDrive35i is a significant step above the 6-speed automatic that's offered in the base model. The DCT shifts very quickly, matches revs for downshifts, and does a great job of maintaining a smooth flow of power. Acceleration from zero to 60 mph happens in just 5.0 seconds with the DCT, while top speed with the available Sport Package is 150 mph.


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