Launched in 1991, the Optare

Optare

Optare plc is a bus manufacturer and importer based in Leeds and Blackburn, UK. The company operates from three main business units, Bus Manufacturing, Coach Sales and Unitec....

 Spectra is a double-decker bus

Double-decker bus

A double-decker bus is a bus that has two storeys or 'decks'. Global usage of this type of bus is more common in outer touring than in its intra-urban transportion role. Double-decker buses are also commonly found in certain parts of Europe, Asia, and former British colonies and protectorates...

 body built on the DAF (now VDL) DB250

VDL DB250

The VDL DB250 is a double-decker bus sold in the UK through VDL Bus International's UK dealer Arriva Bus & Coach. A small number of DB250s have also been exported to Istanbul, Turkey.-DB250:...

 chassis.

The vehicle was developed as a joint project between Optare and DAF; based on the designs of the successful MCW Metrobus

MCW Metrobus

The MCW Metrobus is a double decker bus model manufactured by MCW from 1977 until 1989, with over 4,000 examples built. The original MkI model was superseded by the MkII model in 1981/1982, although production of the original MkI continued for London Transport until 1985...

 which Optare had purchased, but they are no means a restlyed Metrobus. With the launch of the DB250LF chassis sometime after production commenced, the Spectra was built to low-floor

Low-floor bus

A low-floor bus is a bus that has no steps between one or more entrances and part or all of the passenger cabin. Being low floor improves the accessibility of the bus for the public, particularly the elderly or infirm, or those with push chairs, and increasingly, those in wheelchairs.In the modern...

 specification, and was one of the first low-floor double deckers available in the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

.