You must have missed the bowser Chevvron, The Volga-Dnepr Group quotes range at max payload as 4,500km. Wiki gives it a maximum range (payload not noted) of 5,200km.
It's probably just about doable. The Range Rovers were reportedly bound for the Trans Siberian Rally, which actually starts in Moscow.
https://www.airliners.net/photo/Russ...-Ruslan/758578