One of the main assumptions that a lot of modern car manufacturers are striving at is the will or need to ensure the highest possible level of safety for every user of their cars. This fact concerns to a very large extent the braking system, which is responsible for effective stopping of car before an obstacle. Bringing the car to halt is one of the key factors that affect the level of safety of driving for every road user. This was just one of the reasons why experiments with the ABS system were commenced in 1966. Initially, it only concerned the wheels that are fitted on the rear axles of the car. Over the time, however, as the benefits resulting from the application of this system became evident, it was further developed and fitted on all four wheels of the car.