BMW Z4

The BMW Z4 is a rear-wheel drive sports car by the German car maker BMW. It follows a line of past BMW roadsters such as the BMW Z1, BMW 507, BMW Z8, and the BMW Z3. The Z4 replaces the Z3. First generation production started in 2002 at BMW USA's Greer, South Carolina plant, with production of both roadster and coupe forms. When debuted, it won Automobile Magazine "Design of the Year Award". Starting with the 2009 model year, the second-generation Z4 is built at BMW's Regensburg, Germany plant as a retractable hardtop roadster. In 2009, the BMW Z4 won the Red Dot Design Award.
The first-generation BMW Z4 was designated the E85 in roadster form and E86 in coupé form. It was designed by Danish BMW-designer Anders Warming.

From 2004 the Z4 Roadster is available as a 3.0i, a 3.0si available with the new generation 3.0 L I6 with 265 hp, a 2.5si with a 2.5 I6 with 218 bhp, a 2.2i with a straight-6 170 bhp  engine, or a 2.0i with a 150 bhp 2.0 L I4. The Z4 coupé is available only in the high-performance 3.0si trim powered by the 3.0 L 255 hp I6. The Z4 was built at the Greer plant.

Little was new for the 2004 model year.

The 2.5i got 16-inch wheels, the 3.0i got 17-inch rubber.

An optional Sport Package included a sport suspension, plus increased wheel size to 17 inches on the 2.5i, or 18 inches on the 3.0i.

A Dynamic Driving Control console button was added that quickened throttle action and reduced power-steering assist.

Leather upholstery was standard in the 3.0i and optional for the 2.5i.

Xenon headlamps were optional on both models.

A removable hardtop and a wind deflector were dealer-installed options.

The Sequential Manual Gearbox remained available on the 3.0i, it was dropped for the 2.5i.

Optional heated seats

Optional navigation system

Optional BMW Assist emergency and concierge service.

The Z4 M is powered by a 3.2-litre straight-six engine. Performance figures are: 3,246 cc displacement, 333 brake horsepower at 7,900 rpm, 269 lb·ft of torque at 4,900 rpm, 8,000 rpm redline. Output per litre is 107 bhp, and power-to-weight ratio is 9.9 lb/bhp. Acceleration to 60 mph comes in 4.8 seconds. and top speed is limited electronically to 156 mph.

The vehicle was originally announced 13 December 2008. The vehicle was unveiled in 2009 North American International Auto Show in Detroit. This time a coupé-convertible with folding hardtop, the Z4 will be built in Regensburg alongside the 3-Series Cabrio, likely due to the U.S. plant needing more room for SUV production. It moved upmarket, dropping the small four-cylinder base engine. In late 2011 BMW reintroduced a 2.0 litre, 4-cylinder powerplant with twin-scroll turbo.

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