The BMW Z4 car is a rear-wheel drive sports car by the German automaker BMW, known as the E85 in roadster form and E86 in coupe form. Production started in 2002, and thus replaced the BMW Z3. The most powerful car of the Z4 line-up is the Z4 M. It features a naturally aspirated, in-line six cylinder engine, used in the third generation of the BMW M3. It produces 340 bhp at 7900 rpm, and 365 nm (270 lb-ft) of torque. 0-100 km/h takes 5 seconds, and the top speed is limited to 250 km/h. The design addresses many criticisms of the Z3; the Z4 is larger, and has a significantly stiffer chassis. It is built in Spartanburg, South Carolina. Initially, the Z4 was available only as a roadster, but in 2006 a coupé version was officially launched.
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