The Flxible Metro is a transit bus

Transit bus

A transit bus , also known as a commuter bus, city bus, or public bus, is a bus used for short-distance public transport purposes...

 that was manufactured by the Flxible Corporation

Flxible

The Flxible Co. was a motorcycle sidecar, funeral car, ambulance, intercity coach and transit bus manufacturing company based in the United States that was founded in 1913, and which closed in 1996.-History:In 1913, Hugo H. Young and Carl F...

 from 1978 until 1996. From 1978 until 1983, when Flxible was owned by Grumman, the model was known as the Grumman 870, with a Grumman nameplate.
Under the ownership of Rohr Industries

Rohr, Inc.

Goodrich Aerostructures Group, formerly Rohr, Inc., is an aerospace manufacturing company based in Chula Vista, California, south of San Diego...

 since 1970, while the Flxible New Look was still in production, Rohr began development of what would become the Grumman 870 Advanced Design Bus.