A Viento is an electric motor scooter

Electric motorcycles and scooters

Electric motorcycles and scooters are vehicles with two or three wheels that use electric motors to attain locomotion. Electric motorcycles, as distinguished from scooters, do not have a step-through frame....

built by The Electric Cycle Company (TECC). It is no longer manufactured as the company went out of business in 2006. Only 112 known units hand built in Van nuys,CA. Designer Ely Schless

It can reach 28 miles per hour (45 kilometres per hour) and maintains that speed for up to 30 miles (50 kilometres).
It is a 36 volt system using three 12 volt batteries.
Is considered a moped in the state of California.