This tremendous machine is a Soviet-era MAZ-537L, an 8×8 heavy ballast truck which – in this configuration – was designed to pull the Soviet Union’s largest aircraft.
The exceptional recreation of the MAZ is the work of [Maks] of Flickr, who has constructed it beautifully, complete with four-wheel-steering and working suspension. There’s much more to see at [Maks]’s ‘MAZ-537L’ album, and you can tow a ginormous Cold War bomber somewhere in Russia via the link above.