Cowey showed two cars at the 1910 Olympia Show to demonstrate its pneumatic suspension system, in which four cylinders of compressed air took the place of springs. It incorporated a self-levelling device, as used in more sophisticated form 45 years later in the Citroen DS19. The cars were powered by De Dion-Bouton engines of 10 and 20hp, had solid tyres, to demonstrate the efficacy of the compressed air system. They were experimental, but three years later Cowey offered for sale a light car using the same system. It had a 10hp 4-cylinder Chapuis-Dornier engine, a Morris like bullnose radiator and friction drive in which a flywheel with conical facing acted as the driving disc. It was priced at £300.