The 1904 models had a 2470 cc, four-cylinder, water-cooled, overhead-valve engines featuring pressure lubrication, very unusual at the time, and were now mounted with the epicyclic gearbox between the front seats rather than centrally, resulting in a design with the driver sitting well forwards and without a bonnet. Six-cylinder models joined the line-up in 1906. The specification started to become more conventional with wheel steering as an option from 1908, becoming standard from the end of 1911, pedals and a gear lever replaced the original two-lever system of gear changing. George Lanchester was now in charge, Frederick having resigned in 1913. The engine was moved further forward to a conventional position in the sporting Forty, with a side-valve, 5.5-litre six-cylinder engine, but very few were made before the outbreak of World War I. A distinctive feature of the engine's valves was their use of leaf springs, rather than coil springs. Frank Lanchester ran the London sales office.