Production chronology2018–2024
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗7 years
← Alexander Dennis
Alexander Dennis / Model record
Alexander DennisEnviro400EV (BYD generation)
Production2018–2024
Recorded originUnited Kingdom
ClassBattery-electric low-floor double-deck bus
First-generation electric double-decker created through the BYD partnership; treated separately from the later fully in-house Alexander Dennis generation.
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.