popular "Torpedo" type and "Conduite Intérieure" (two-box saloon/sedan) cars were the only ones featuring the much vaunted "all-steel" bodies in full. The others used a combination of old and new body structures, which removed the need to tool up dies for stamping out the relatively small numbers of panels needed for the less ubiquitous body types. Brakes and springs Criticism of the B10's brakes was addressed with the "Type B12" which incorporated a new system of drum brakes that now worked on all four wheels. (On the earlier car the front wheels had been unbraked.) There was also a new semi-elliptical leaf spring arrangement at the front. Commercial Like the "Type B10", the "Citroën Type B12" was in effect a one-year model. Partly because of the challenges with the new body making techniques, only 17,259 B10s had been manufactured. For the 1926 model year, the B12 more than doubled than figure, with 38,381 cars produced. The successor model, the "Citroën Type B14", was formally released at the Paris Motor Show in October 1926 (although it would be 1927 before the last of the B12s found customers). Bibliography Jacques Wolgensinger, André Citroën, Lupetti, J.P. Foucault, Le 90 ans de Citroën, Éditions Michel Lafon, AA.VV., Citroën 1919-2006 - La storia e i modelli, Editoriale Domus References Type B12 Cars introduced in 1925