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More than any other sports car in the world, this unique car embodies the typical roadster: The BMW Z4 Roadster thrills the car world through its fascinating, sporting dynamism created by a perfect synthesis of a high-performance power unit, the outstanding chassis and suspension, and innovative features all round. And not least it is the wonderful design of the BMW Z4 Roadster which makes this car so unique, desirable and a genuine must-have. And now, four years after its world debut, the BMW Z4 Roadster is making a new, brilliant appearance with new engines.
New Six-Cylinder Power Unit for the Z4 Roadster
While the six- and four-cylinder power units featured in the BMW Z4 Roadster naturally cannot match the output and performance of the M engine, they are everything but under-powered. Indeed, the new 3.0-liter straight-six in the BMW Z4 Roadster 3.0si is currently the most innovative engine in its class, setting the standard in motoring refinement and dynamic performance. Further strengths are the engine's high output per liter, a very good power-to-weight ratio, and the lowest specific fuel consumption. Maximum output is 265 bhp at 6,600 rpm, maximum engine speed is 7,000 rpm, and the engine maintains its peak torque of 232 lb-ft maintained consistently from 2,500-4,000 rpm. Complying, last but not least, with both the EU4 and ULEV II standards, this outstanding power unit is also a role model from the perspective of the environment.
The most striking feature from the customer's perspective in comparison with the former engine is the sporting responsiveness of the new power unit in conjunction with thrilling engine sound whenever the driver calls up its power, as well as supreme refinement and motoring culture when cruising or just breezing along.
Superior power and low weight naturally also mean superior performance and efficiency: The Z4 Roadster 3.0si accelerates from 0 to 60 mph in 5.7 seconds, acceleration from 50-75 mph in fourth gear comes in 5.5 seconds.
Like the Z4 M Roadster, the Z4 Roadster 3.0si is limited electronically to a top speed of 250 or 155 mph. Fuel consumption in the combined EU cycle, finally, is just 8.6 liters Premium plus/100 km, equal to 32.8 mpg Imp.
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