Teardrop at the boat ramp carpark this morning.
A commercially available one, but with a neat addition I don't think I've seen before.
It has these drive units mounted just in front of the wheels that have ribbed rollers on them. I assume they just push up against the tyres when you want to use them..
Looks like you put the front jockey wheel down, then you can move the whole thing around by battery power.
Zero strain.