[@Section] Some tank info, using the M1 Abrams, the current USA main battle tank, as an example.

Max Speed: 40-45 mph on roads, 25-30 on uneven terrain.

Fuel consumption: 10 gallons to start the turbine. 60 gallons per hour (so you can go up to 30 mph on rough terrain, or 45 mph on paved road, for an hour with 70 gallons).

Fuel capacity: 500 gallons. You're never going to fill it up, so gas will always be a resource to hunt.

That's pretty solid, but you probably won't get your hands on one.