It was a Chenard and Walc.ker which ran so well in the circuit de Boulogne. The two-litre model, which was driven by M. Leonard, on that occasion, and which won the Boillot Cup, is a fine sports chassis. Its fourcylinders, of 69.5 /um and 130 mm. bore and stroke, are cast en bloc, with detachable head, and overhead cam shaft and valve gear. The gear box; which is unit mounted with the engine, and which has centre change, provides four speeds and a reverse. The clutch is a single disc, and the rear axle a double banjo type, full floating.