I looked really long at these some years back. Massive torque, and a top speed of 18mph, heavy output shaft diameter. I wasn't interested in a floating machine though, more along the lines of a tracked work vehicle for dealing with a honey locust problem. All those specs are dependent on the powerplant used of course. They were about half the present price when I looked at them though. Ouch!
https://www.hydro-gear.com/commercial/
DESTRUCTION is just a couple of vowels down the street from DISTRACTION