They probably siphoned diesel or petrol from parked cars. You push a tube into the fuel tank, and create a flow by sucking on it and then let gravity do the rest. Don't use this power for evil, or fuck it up and swallow petrol, because that isn't fun.
That might explain why it didn't get very far; tanks are lucky to get more 1mpg (the US M1 Abrams manages less than half that - because it's jet powered) and you probably couldn't get much fuel. They may also have tried to use petrol to power it, which would work for a while, but still break down.
You know what else is Badass? The guy driving it was apparently a Cool Old Guy
veteran of the 1956 revolution
, where anti-communist Hungarian students and protesters managed not only to bring down their own government, but kill 700 of the Soviet soldiers sent to stop them, and hijack Russian tanks.
Bad. Fucking. Ass.
edited 3rd Mar '14 6:42:24 AM by Achaemenid