Production chronology2019–open
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗1 year
← Alexander Dennis
Alexander Dennis / Model record
Alexander DennisEnviro400XLB
Production2019 – present
Recorded originUnited Kingdom
ClassThree-axle high-capacity double-deck bus body
Extra-long three-axle Enviro400 derivative developed for high-capacity work, initially associated with Lothian and later supplied to other operators.
Chronology ledger
Dates with their meaning intact
Record depth — Documented
How this is measured → This record contains useful sourced evidence, but it does not yet meet the reference-ready standard. Still needed: attributed imagery. Fields we cannot source stay empty rather than guessed.