Specifications

Engine
4 Cylinder in line
Valve type: side
Bore: 72mm
Stroke: 114.5mm
Displacement: 1,861cc
Carburettor: Zenith
RAC rating: 12.8hp
27bhp @ 2000bhp
Cruising speed: 40-45mph
Fuel consumption: 24mpg

Brakes
Cable, drums all round

Wheels
20in 10 spoke artillary
with 4.75in x 19in crossply tyres

Transmission
Rear wheel drive
Gearbox: 4-speed
Ratios; 1st: 20 to 1
2nd: : 12 to 1
3rd: 8 to 1
Top 5.1 to 1

Construction
Steel and wood body on steel ladder-type chassis
Fabric on wood roof

Wheels
20in 10 spoke artillary
with 4.75in x 19in crossply tyres

Suspension
Front & Rear: Semi-elliptic leaf,

Steering
Worm & nut

Dimensions & Weight
Wheelbase: 9ft 2in
Track F&R: 4ft 8in
Overall length: 13ft 6in
Overall width: 5ft 6in
Overall height: 6ft 1in
Kerb weight: 22cwt
Chassis weight: 16cwt
Ground clearance: 8.5in
Tank capacity:8gals

12/4 Production 1921-39
Saloons and Tourers: 88,000