Sourced production or model lifecycle range used by the main catalog timeline.
BRACV4
Four-wheel development of the CV3, retaining its lightweight 2CV-based cyclecar concept while replacing the single rear wheel. BRA completed and registered one prototype in 2000 but stopped development for lack of time and space. Aero Cycle Cars later advertised itself as manufacturer of both CV3 and CV4, and a road-registered 2010 CV4 survives, proving at least one successor build. The record does not assume uninterrupted 2000–2010 manufacture or invent a cumulative total.
Dates with their meaning intact
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.
BRA completed one registered prototype in 2000; the total of later Aero Cycle Cars CV4s is unknown.