That powerful machine above is probably the largest sedan ever made - it is the first Soviet purpose-built airplane tractor, MAZ-541. Powered by a 38.88 liters, 12-cylinder 300hp D-12A diesel engine (a variation of V-2, heart of mighty T-34 tank) - and was able to tow up to 85 tons (notice that IL-62 on the picture above weighs more then 100 tons). Production started in 1956. Sadly, only 13 (some sources claim only 3) of them were built, but they still served in 1970's. I think it is one of the most impressive Soviet (and not only Soviet) trucks of mid-50's, when the Diesel Era has come to an end in aviation and almost ended in automotive industry.
MAZ-541 and Tupolev Tu-134
First soviet airplane carrier towing first soviet supersonic passenger airliner (1:00)