Cars are weighed with dry-weather tyres fitted. The minimum weight permissible is 740 kg (1,631 lb) including the driver but not fuel. Modern-day Formula One cars are constructed from composites of carbon fibre and similar ultra-lightweight materials.
Due to the amount of braking force and the total cornering envelope of a Formula One car (by the friction component of the tyre, the mass of the machine and the downforce generated), Formula One drivers experience frequent lateral g-loadings in excess of five g and peak cornering forces of up to seven lateral g. Formula One cars are the fastest cars in the world around a race track, owing to very high cornering speeds achieved through the generation of large amounts of aerodynamic downforce. The regulations governing the cars are unique to the championship and specify that cars must be constructed by the racing teams themselves, though the design and manufacture can be outsourced.
A Formula One car or F1 car is a single-seat, open-cockpit, open-wheel formula racing car with substantial front and rear wings, and an engine positioned behind the driver, intended to be used in competition at Formula One racing events.
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