Hovercruiser
A hovercruiser was a one-person vehicle which traveled above the ground. The vehicle was styled after standard motorcycles (which were still used in the 23rd century), and was ridden in much the same style. Instead of wheels, the hovercruiser used a technology to propel the vehicle without touching the ground.

Hovercruisers were used by police officers on Earth during the 23rd century to aid in law enforcement.

In the 2240s, a police officer in Iowa used Hovercruiser 924 to chase a young  who had stolen his stepfather's Corvette. ()

See also 
 Hovercar

it:Moto volante
Alternate reality
Earth vehicles