I know this is a link to a vendor. I'm not spamming for them. I came across a guy riding one of these.

2x 1000W geared hub motors, and 35Ah dual 52V battery configuration. Front, Rear and 2wd switch.
I don't like the mini-bike format. makes pedaling a joke. Weighs over 100#. But for sand blasting wide tires and 2wd should pull the front tire up out of the sand.
Maybe Luna will offer a real bicycle version of this now that they have moved into hub motor territory.
Might give the old M1 1/2 track kit a run for it's money.