Ohio has a funny license law for 3 Wheelers. If you can ride in it you only need a car driver's license but if you straddle it you need a motorcycle license. But my MTW is licensed as a motorcycle. Took 20 minutes at the DMV for them to figure out how it was going to be titled. They came up with the designation Auto Cycle.
Same for Washington State. We call ours motorcycles, probably for car pool lane restrictions.
