Some cars leave a paper trail; the Land Rover Series III Lightweight left a name and a place in Land Rover's list. What follows is what can be said with a source behind it.
In context
Nearby in the Land Rover catalogue sit the Land Rover Defender L663 and the Land Rover Discovery Sport.
The record
The open record for the Land Rover Series III Lightweight carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.
Land Rover Series 
Land Rover Series III