Wheels make 25% of the car surface. Thus wheels undoubtedly influence the general view of the car. It has been a while since the well-known automobile manufacturers have been decorating their prestigious models with the nice-looking light alloy wheels. It is proved statistically that in 85% of cases the light alloy wheels are chosen because of their esthetical fascination or exclusive design. According to photographers, new, well-fitted wheel rims change the car in the same way as the jewelry change a beloved woman. However, for the real car lover it is not just a tribute to beauty. The geometrical parameters of the wheel determine the car movement when turning, its dynamics and economy. The lighter the wheels are the lighter and softer the car moves, the less laden wheel mechanism and brakes are. Because of the specific features of alloy, heat is better run off from tires, the details of the brakes system, wheel bosses and bearings do not heat so much (prepared according manufacturers' information)