The Optare Alero was a low-floor minibus, it was built from 2001 to 2008 by Optare. Most Aleros were used for rural routes.
Alero
From 2001[1] to 2006, Optare made the Alero.
Alero Plus
From 2006 to 2008, Optare made the Alero Plus.[2]
References
Other websites