Production chronology1912–1914
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗3 years
← BSA
BSA / Model record
BSA13.9 HP
Production1912–1914
Recorded originUnited Kingdom
ClassAll-steel two-seat open car
Sole rationalized pre-war model after production moved to Coventry. It used 2,756 or 2,845 mm wheelbases and pioneering all-metal body construction; a radiator-altered version was briefly sold by Siddeley-Deasy as Stoneleigh. Although one table extends it to 1915, war stopped BSA car manufacture in 1914, so the evidenced production endpoint is retained.
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.