During 1931 the rear of the engine was supported on a 3/16-inch steel plate spanning across the chassis, consequently the gearbox bell housing was deep and with the starter alongside.

The brakes are Lockheed hydraulic acting on 9+1⁄2-inch drums with one leading and one trailing shoe on all 4 wheels.

Suspension consists of 4 semi-elliptic springs on rubber bushes damped by Luvax hydraulic shock absorbers.

A sliding sun roof was standard, operated by a rotating handle above the driver.

Optional extras were a luggage rack, chrome bumpers and Stevenson Jacking system.

The only known Super 9 to have Bedford Cord throughout is the prototype; this also has a smokers vent in the roof which is shown on brochures, but is not seen on any production 9's.

After 1931 a petrol gauge was added, prior to this a fuel tap was incorporated to give a reserve supply.

External lights switching, battery charge rate, and ignition timing were all at the centre of the steering wheel.