Throughout 1931 and 1933 continuous improvements were made the 12hp range of cars as follows:

1931 December, a new12hp Deluxe model was introduced with 4 speed pre-select gearbox and a V shaped radiator shell. This model . The Economy model was continued with 3 speed pre-select and flat radiator.

On both models the fuel tank was moved to the rear of the car, now of 9 gallon capacity and a mechanical fuel pump installed on the near side of the engine

 

1932 February the 12hp Economy became available as ether Saloon or Coachbuilt Saloon both now with V radiator shell. The deluxe model was available with the option four different bodies:

Coachbuilt Saloon, Sports Saloon, Open Tourer or 2/3seater dhc.

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Jun 1932 Stainless steel valve introduced, these were deemed to be more hard wearing.

 

1932 July, a covered luggage grid introduced. This was concealed inside the boot lid, which could be lowered into the open position, where suitcases could be secured to the grid with leather straps.

 

1932 October, the induction manifolds changed from being externally mounted to be internally mounted. The carburettor now bolted to an extension of the exhaust manifold. The shape of the ports was changed with larger valves which gave a slight improvement in speed & MPG.

 

A Bendix braking system was introduced and the chassis strengthened to cope with the increased stress that this new system produced. DWS Jacking system was fitted.  Lucas Startix system with manual or automatic setting was fitted to the deluxe model together with new instruments.

 

Options available at this time were a sliding roof, bumpers and wire wheels.

 

1933 October, the Claudel Hobson carburettor was changed to a down draught model

 

No further changes were made until the 12plus model was introduced in 1935.