In the mid 1950s, airplanes evolved into large jetliners and airports had to find more powerful vehicles to tow them around. In the Soviet Union, one solution was to build a large two-driver sedan-bodied tow car with the engine out of a tank, and it was probably the biggest sedan in the world.
Source: Gizmodo – This Soviet Airplane Tow Car Was Probably The Biggest Sedan In The World