The new generation KAMAZ-65659 (6×2) truck tractor with a rear automatic lifting axle has, on the one hand, the economy and maneuverability of 4×2 vehicles and, on the other hand, the high load capacity of 6×4 vehicles. Depending on the load, the rear axle can be lowered to the road, taking on a significant part of the load, or raised, providing fuel savings, reducing tire wear and increasing maneuverability. The design of the vehicle allows for optimal weight distribution across the axles without exceeding the permissible axle loads, which ensures the most efficient use of this truck tractor in cargo transportation.