dieseldave:
To the best of my memory, they were a small artic. They were almost exclusively operated by the old British Rail and were used for parcels. My memeory of them is that they were a three-wheeler Scammell tractor unit and a short length single axle trailer, usually a box-body, but some were flats.
You mean the Scammell Scarab also known as the Mechanical Horse.
A few months ago I read this book and the author recounts tales of driving them when he worked for the railway in Manchester. I also remember having a model/toy one when I was a kid.
