B.N.C. were a successful maker of cyclecars, winning many rallies albeit not selling very many cars. In the late 1920s, the company tried to penetrate a higher market sector - unfortunately the demand for large passenger cars and for ultra-light racing cars were both low, and Bollack and Netter were forced out of their company in 1928 when the business was acquired by Charles de Ricou, an energetic businessman who by now had a reputation for rescuing financially troubled automobile manufacturing businesses. In the case of B.N.C. his timing was less than perfect, however, in that (like many others) he failed to anticipate the Great Depression, B.N.C. launching the large 8-cylinder engined "Aigle" in October 1929, a few days before the stock market crashes gave notice of a decade of severe contraction and stagnation for the French economy.