It was a production version of the car which won the Isle of Man Tourist Trophy Race in 1906.

With a few breaks Rover kept a premium 20 tax horsepower car in their catalogue until the outbreak of war in 1939.

At the forward right hand end of the engine a shaft spur-driven from the crankshaft powers the water circulation pump, the magneto and the contact maker.

The magneto and contact maker are linked so one lever controls the advance or retard of the ignition timing.

For a reduced price a three-speed gearbox could be supplied along with smaller diameter tyres in which case no magneto ignition system is fitted.

Radius rods from the gearbox take up braking strains and act as distance stays for the back axle.

[3] The chassis is built up from steel flitch plates over ash to give the necessary strength with flexibility.

[3] Road tests as late as 1911 noted how Rover cars lacked accelerator pedals.