The classic scooter design features a step-thru frame and a flat floorboard for the rider's feet.
Most jurisdictions have no legal definition for "scooter". In general, 50 cc and under scooters are classified in most states and countries as a moped and are subject to reduced safety restrictions and licensing fees.
Some of these modern high-end scooters also come with comfort features such as windshields, heated hand grips and full instrumentation (including clock or outside temperature gauge.)
Anyway, cheap gas scooter, is good for all.
In many parts of the world, such as Europe and Asia, motor scooters are a popular form of urban transportation due to their size, fuel-efficiency, weight, and typically larger storage room than a motorcycle.