By the end of the decade, production of the poppet valve engine had been surpassed by that of the sleeve valve engine. Dr. Lanchester had joined Daimler some years earlier as a consultant and had developed the flywheel on the crankshaft, which reduced vibration. 1910 saw David Lloyd George's people's budget increase car taxation 8 fold on the larger engined cars over 60HP, giving an equivalent road tax in today's terms of over £2000. Subsequently, Daimler ceased production of the larger engined cars, but sales were badly affected on all models. Also in 1910, an amalgamation was proposed between the Birmingham Small Arms factory and Daimler, and was accepted by the board. In the same year BSA produced their first motorcycle.

Daimler silent knight, first sleeve valve car

Mr Charles Yale Knight demostrates his engine