BMW Z4

The BMW Z4 is a rear-wheel drive sports car . Replacing the Z3, first-generation production started in 2002 at BMW's Spartanburg, South Carolina plant, with both roadster and coupe forms produced. Starting with the 2009 model year, the second-generation Z4 is built at BMW's Regensburg, Germany plant as a retractable hardtop roadster.


The Z4 offers a choice of four straight-6 engines: 2.2 L, 2.5 L, 3.0 L, and 3.2 L.All are variants of the BMW M54 engine. In the European market, a 2.0 L straight-4 is also offered.



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, producing 252 kW (343 PS; 338 hp) at 7,900 rpm and 365 N·m (269 lb·ft) of torque at 4,900 rpm.
0-100 km/h takes 5.0 seconds, and the top speed is limited to 250 km/h (155 mph).

Five-speed manual gearboxes are standard on all models except the 3.0 L and the M Roadster, which get a 6-speed Getrag.
5-speed or 6-speed automatic are available on all non M cars.
The M Roadster shares its 6-speed Getrag 217 manual gearbox with the M3.


A Sport package, adding stiffer and lower suspension, larger wheels with run-flat tires, and Dynamic Driving control, BMW's Vehicle Stability Control system, is also available.
2006-2008 BMW Z4 3.0si


In 2006, BMW updated the Z4 line by introducing the M Roadster, and later the M Coupe, with the vaunted S54 "M" engine, rated for 330 bhp at 7900 rpm.
The standard cars received the new N52 I6 engines. In the 3.0si, this engine makes 190 kW (258 PS; 255 hp) and 300 N·m (220 lb·ft) of torque.
The N52 features a magnesium block construction, which consists of an aluminum interior for the cylinders, and an outer magnesium block.
The engine features BMW's Valvetronic variable valve timing system for increased performance, are considerably more powerful through the middle of the rev range, and also improve fuel economy noticeably.
A final benefit of the N52 engines is that they improve handling and turn-in due to the decreased weight over the nose of the car.
This is particularly noticeable when compared to the Z4 M, which continues with the heavier S54 iron block engine.