Production chronology1956–1959
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗4 years
← Brissonneau et Lotz
Brissonneau et Lotz / Model record
Brissonneau et Lotz4CV Cabriolet (Louis Rosier)
Production1956–1959
Recorded originFrance
ClassTwo-door two-to-three-seat fiberglass cabriolet
Power21 hp
Brissonneau et Lotz's only series road car under its own manufacturing identity, developed from racing driver and Renault dealer Louis Rosier's 4CV-based sports-car experiments. Rosier and Rocco Motto had created earlier one-offs, but Brissonneau industrialized the separate fiberglass cabriolet at Creil/Montataire and displayed it at the 1956 Paris Salon as Rosier lay mortally injured after a racing accident. Production cars carried a Louis Rosier signature on the rear as a posthumous tribute. Renault 4CV rear-engine mechanicals drove through a three-speed manual; published dimensions are 3,750 mm long, 1,500 mm wide and 1,320 mm high, with 655 kg curb weight and a claimed 112 km/h maximum. It remains one family despite differing sporty and more chromed presentation. Renault Floride/Caravelle, Matra 530 and Opel GT contract work is not duplicated here.
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.
Research notes
Approximately 230–250 were built; contemporary-derived sources variously report about 200, 230 or 250 and no reconciled chassis ledger is available.