All military & utility models
Military - Tracked conversion
Cuthbertson Tracked
James A. Cuthbertson of Biggar, Scotland, mounted a 109 on four rubber track units driven from the original hubs. Ground pressure was low enough for bogs and snow, and the army tested it for bomb disposal work.
- Released
- 1961
- Ended
- Mid 1960s

Full technical specification
Figures are typical for the model range and vary by year, engine, body style and market.
Engine
- Type
- 2.25 L 4-cylinder petrol
- Power
- 77 bhp
Running gear
- Drive
- Four steerable track units driven from the wheel hubs
- Ground pressure
- Very low, suited to bog and snow
- Steering
- Standard steering wheel
Dimensions & capacities
- Base
- Series II / IIA 109" (some 88")
- Ride height
- Raised approx. 2 ft over standard
Production
- Converter
- James A. Cuthbertson Ltd, Biggar, Scotland
- Units
- Very few, a handful survive
- Users
- Military trials, North of Scotland Hydro-Electric Board