We saw one of those staging at Shell one day. Not sure about the front end, but the rear was similar.

It was huge and from what I recall, the guy said it was around 4k lbs.

Hmmm, at 4,000 pounds, and a 1150cc engine, that thing must not get very good gas mileage. And in fact, I wonder how the driver is supposed to fill the tank? I guess that's why you need someone with you.

At 2 tons I think you would need an engine like they use on the Boss Hoss bikes.