Chassis B41GP was tested on June 1936 and it is one of the late 3.5 Litre. Originally with engine number W6BLX it is written on the factory records that this engine was change due to mechanical problems in 1940 by the actual 4.25 Litre with number B6BN. Delivered to its first owner, Commodore Louis Beaumont at his house in the Côt..