BMW Z4 Roadster 2007

The BMW Z4 is a car to stimulate all the senses. The active shapes and avantgarde styling, superb handling, and exhilarating performance undpobtly make it a modern interpretation of roadster. Yet it never strays from the purist character of a true sports car. In a nutshell, the BMW Z4 gives new meaning to the term "driving pleasure", combining the classic qualities of a thoroughbred roadster with supreme handling and an absolutely authentic driving experience. An experience.

Technology

Dynamic Stability Control (DSC) not only optmises driving stability when starting or accelerating, it also improves traction. In addition, the system recognises unstable driving conditions such as under - or oversteering and helps to maintain a safe course for the vehicle. Advanced sensory technology monitors the wheel rotation speed, lateralacceleration and the yaw rate (rotation around the vertical axis). This data is processed to obtain information about the automobile as it is currently moving, as supplied by the accelerator and the angle of the steering wheel.

If these two lists of data do not match and the automobile's stability is threatened, DSC is activated and influences the brake system or the engine management. This action helps prevent dangerous situations such as skidding.

As a further development of ABS, CBC (Cornering Brake Control) is a standard feature with BMW, CBC enables the driver to use the brake power of the rear wheels in full, without any additional risks affecting the car's directional stability. Should the driver apply the brakes, for example, in a series of fast bends, the car may spin and oversteer even under slight brake pressure. This is a result of increasing pressure on the front axle, following a simple law of physics irrespective of the drive system and configuration.

Applying specific computer simulation programs, CBC is able to determine lateral acceleration from the signals emitted by the four ABS sensors. CBC thus recognises a bend and controls the build-up of brake power accordingly, with brake forces building up more quickly on the outer front wheel in a bend than on the other wheels and counteracting the spin.

Interior Mirrors with Anti-Dazzle Feature.

BMW was the first car maker to introduce anti-dazzle mirrors operating automatically inside. These so-called EC (Electrochromatic) mirrors are made up of a clear and a reflecting layer of glass with an ultra-thin film of fluid in between. As soon as this fluid is subjected to a certain tension, it changes its permeablity to light and the mirror grows darker.

BMW X5

Xenon headlights for high and low beam incl. automatic headlight range control and headlight washing system, for much better illumination of the road ahead in bad weather, at night or in poor visibility. The four light rings offer a daytime driving light function, and can also be used as parking lights (standard on the 4.8i and 3.0sd).

Adaptive Headlights, incl. turning lights, illuminate bends by optimal electromechanical adjustment of the swivelling headlights as soon as the driver turns the steering wheel (only in combination with Xenon lights). The turning light in the fog lights is automatically activated even at a standstill, when the indicator is used or with a steering lock of over ten degrees – up to a speed of 40 km/h.

High-beam assist aids the driver at night by automatically switching from high to low beam for oncoming traffic or when street lighting is sufficient.

Headlight washing system provides optimal illumination of the road ahead in all weather conditions. Headlights are automatically cleaned in parallel with the windscreen when the lights are on. (Available in combination with the optional equipment Xenon headlights*).

Rain sensor incl. automatic driving lights control: Once activated, the rain sensor automatically switches on the windscreen wipers and controls wiper frequency, depending on how hard it is raining. This feature includes automatic driving lights control switching on the low-beam headlights automatically for example when it gets dark or when entering a tunnel.

Brake Force Display with two-stage brake lights makes it easier for drivers following from behind to see how hard you are applying the brakes: If you are applying the brakes in an emergency, the brake lights cover a larger area, allowing following traffic to distinguish between full application of the brakes and just a slight “tap” on the brakes. The result, clearly, is an even higher standard of driving safety on the road.

Leather steering wheel with multifunction buttons for cruise control and remote control of the radio/telephone. Two buttons are freely programmable.

Active steering incl. Servotronic adapts the steering transmission and steering force to the current speed of the vehicle, thus ensuring optimum steering precision, agility and comfort.

Start/Stop button for starting the engine. After inserting the ignition key you can start or stop the engine by pressing the button. Steering wheel heating: Just press a button to quickly warm up the steering wheel rim – a particularly pleasant amenity in winter.

Voice control system; for adjusting e.g. radio station, navigation routes while driving. Functions are shown on the Control Display at the same time (this feature is included in the optional navigation system Professional*).