I use hoverboard hub motors on one of my rovers and 120kV brushless motors as hub motors on another rover. The hoverboard motors are rated for 36V. Would I try to run my rover with 36V, I would get an unloaded topspeed of 140kph. A little fast for my liking.
So I run it on 4s (16.8V) and it is plenty fast.
The other rover is also running on 4s and is even faster (smaller wheels, but 120kV). Would I dare to try it, it should go around 50kph.
Both rovers run Flipsky VESCs in FOC mode, with the hall sensors that are build into the motors.
The hoverboards use the high voltage to get enough power through thin wires. Their top speed is limited anyways and they need rpm headroom to keep the balancing going.
I never tested the maximum/stall current draw, but the motors of the 120kV rover never get warm, even after an hour of driving around.