While the official top speed of the M1 Abrams tank is 45 mph, that’s with a governor installed to save the tracks. -Many crews remove it, allowing the 67-ton vehicle to reach speeds of 60 mph or more.

The UK’s next main battle tank, the Challenger 3 (CR3), is under development and was displayed at this year’s Defence and Security Equipment International trade fair in London. Prototypes are being ...