BNC was started by ex Hispano-Suiza man Lucien Bollack, to produce cyclecars with engines supplied by Ruby, SCAP and Chapuis-Dornier, sometimes with Cozette supercharging. Cyclecars had been popularised by allowing a 2 seater car of under a dry weight of 350kg and 1100cc to run with minimal yearly taxation. Think of GN, Amilcar, Salmson. Lombard. BNC ran into trouble when it tried to go "upmarket" with a larger car and the company was sold on, but struggled to cope with the depression of 1930, and after making various prototypes the doors closed in 1931.