" Once a haul truck, now it is a nuclear-drawn off-roader no longer requiring any fuel. Has high carrying capacity. "
BelAZ doesn't wear out/break and doesn't require any fuel (it starts out at 5% worn, but doesn't wear out any further).
Slow but unstoppable. Its great payload and speed makes it the ultimate truck to roam the wastelands.
It is so powerful it's considered game-breaking by some survivors.