Chassis only listed, numerous customs.

A result of the Hispano-Ballot merger- or a smaller edition of Marc Birkigt's ohc six in a Ballot RH3 frame. Alloy block, nitralloy liners, seven mains, dual coil ignition, the usual multiplate clutch and three forward speeds, though central change is standard on this one, not to mention a silent second gear. An electric pump replaces the Autovac of earlier models.