It's hard to believe that a vehicle that's legal for sale in the USA isn't legal for sale in Maryland. What's the statute they're quoting here? You might be the only M3W in Maryland...lucky you, I have to deal with Michael down the road from me...but surely those 3 wheeled trikes are fairly common.
Why can't you register it as a motorcycle? That's what the MCO states, and that's the basis for it's being lawful for sale here.
