I can't remember how it ended up at the end of the movie, bit it had quite some screentime.
It is the vehicle of the bulletfarmer.
When the war rig got stuck in the mud, the pursuers let the bulletfarmer go after them. Because his tracked vehicle wouldn't get stuck in the mud.
"UNDERSTEER" is when you hit the fence with the front of the car.
"OVERSTEER" is when you hit the fence with the rear of the car.
"HORSEPOWER" is how fast you hit the fence.
"TORQUE" is how far you take the fence with you.
I liked all the Buzzard's vehicles, loved all the spikes, just so aggressive. I can't remember that we actually saw the people inside did we?? Can only imagine them looking as crazy as the vehicles, possibly more mutated or maybe akin to MM2 S&M look?? Is there any visuals of them??