I'm looking forward to the remake of "Christine" with a truck the size of a house in the title role.
You can get that even with human operators.
I worked on a mine that was being established in a very flat and remote part of Australia - not saying where, to protect the guilty. We had a number of Caterpillar 793s (dump trucks with about 2,600hp engines and 350 tonne loaded weight), including two set up as water carts with sprayers and water cannon for consolidating haul roads and dust suppression. Wile we were in construction phase, they were being used for siteworks, and to build the runway we'd eventually fly in and out of.
One night at about 1am, I had to go out to a water bore pump close to the partly-built airstrip, and saw the two 350 tonne water trucks well away from the runway, bouncing through the bush with their water cannons firing full-power pulses into the scrub. I stopped them and started asking some very pointed questions.
It turned out they'd seen a rabbit hop across the runway, and being very bored, had decided to try to shoot it with their water cannons. It then became competitive, and they ended up in a sort of tag match with the confused and very damp rabbit....