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The size and dimensions of Formula One cars are tightly controlled by the regulations. They must be no more than 180cm wide. The length and height of the car are effectively governed by other specific parameters.

For example, bodywork ahead of the rear wheel centre line must be a maximum of 140cm wide. Bodywork behind it must be no more than 100cm wide. Front and rear overhangs are limited to 120cm and 60cm respectively from the wheel centre lines.

The strict regulations mean that the teams inevitably end up with very similarly sized cars. A typical car will be in the region of 4635mm long, 1800mm wide and 950mm high.

With the exception of the rear wing (see below), moveable bodywork is not allowed. Furthermore, any system, device or procedure which uses driver movement as a means of altering the aerodynamic characteristics of the car's bodywork is prohibited.

Cars may be equipped with moveable rear wings which allow the driver to control the wing's angle of incidence (within specified limits) from the cockpit. However, during the race the system is electronically governed and is only available when a driver is less than one second behind another car at pre-determined points on the track. The system is then deactivated once the driver brakes. In combination with KERS, this is designed to boost overtaking.