Meant with the Engine off.... like pushing your car onto the side after it stalls...
TT
If you've got something big enough (like a recovery vehicle) you can pretty easily push or pull a tank.
If you're talking about the difference between a wheeled vehicle and a tank in terms of repairs. Believe it or not, the car is going to be harder to fix. You can keep a Tank going without a few axles assuming you remove the broken bits and it's not the drive or idler wheels. You can also more easily stow spare track links than tires.
Vehicles with tires on the other hand are completely reliant on having an even set of tires on both sides, and are usually way more sensitive and harder to fix, even if they are usually lighter.