If you'll notice in all dmv not just FL, everything is called a "motor vehicle" of one form or another.A moped has an "engine" not a "motor" but the whole moving object is considered a "motor vehicle" even without the propulsive "engine" installed.
PS: Thanks for the young man comment, I'm only a few short of you, but I'll take any compliment I can get, "curtsy".
http://www.worldwidewords.org/articles/engine.htm
If you'll notice in all dmv not just FL, everything is called a "motor vehicle" of one form or another. NOT!
320.01 Definitions, general.—As used in the Florida Statutes, except as otherwise provided, the term:
(1) “Motor vehicle” means:
(a) An automobile, motorcycle, truck, trailer, semitrailer, truck tractor and semitrailer combination, or any other vehicle operated on the roads of this state, used to transport persons or property, and propelled by power other than muscular power,
but the term does not include traction engines, road rollers, special mobile equipment as defined in s. 316.003(48), vehicles that run only upon a track, bicycles, swamp buggies, or mopeds.
Are road rollers "Motor Vehicles"?
Do road rollers require registration?
Do road roller operators require Drivers licenses?
Is there a weight, hp, or speed limit for road rollers?
Do you think that this guy has a Drivers license? Is it registered?
If you were a policeman/sheriff what kind of a ticket would you write?
If you owned a road roller, could you go shopping with it without fear of getting a ticket?