| Reliability of serial car was quite high, making it possible to use them for sporting purposes. To enhance athletic performance and to provide avtosportsmenam broader initiative was later allowed to make various modifications to the production of passenger cars. In force at the time the classification of sports 350 cm3 500. cm3 "750 cm3" 1200 sm3 "2500 sm3" 3500 cm3 over 3500 cm3 In accordance with this classification allowed an increase in engine displacement production cars through the boring of the cylinders. Thus, the competition in 1950 on many cars M-2F engine displacement was increased to 2490 cm 3 |