We rented one of these 2F1R three-wheelers on Isla Mujeres. A few comments:
It had no reverse. You reversed by getting out and pushing, or hanging a leg out and Fred Flintstoning it.
Since the turning radius was lousy (more than the width of the 2-lanes on the island) you had to continually plan ahead or find driveways/interstections in which to flyp a bytch.
It was considerably faster (top end) than the golfcarts, similar to the scooters albeit with less acceleration. 150cc motor?
Alignment was poor, constantly lurched to one side or the other. I assume that could be fixed with a little toe-in. But a real blast in the corners. Never felt at risk of flipping it.
Ingress/Egress was definitely challenging for old souls. We found ourselves wishing we'd just rented a golf cart the 10th time or so we got in and out of it.
Our particular unit had a heat shield rattling insanely.....rather irritating.
Tiny "trunk" with No useable storage. Couldn't haul as much on/in it as you can a moped on the floorboards.
All in all, it was a blast to drive. Since there are only a half dozen on the island it attracted a whole lot of attention. Add a reverse gear (electric?) to make up for the limited turning radius and it would be a lot more enjoyable.