Gerald, as an 11 year old I learned to drive in an 1948 Austin 5 tonner, around the same size as the K Model Bedford but a far better truck. Powered by what became the Austin Healy 100/6 engine from the A90. It was good for 60 mph, not that I got to do that. At hay making time, as I was the smallest I got to drive the truck in the paddock with the hay elevator. Because the cab was so narrow, the load of hay so wide and I so small, I had to drive standing on the running board, left foot on the accelerator through the open driver's door while looking backwards over my shoulder to line the elevator up with the hay bales on the ground. The mirror of course was a corroded round thing the size of a saucer and absolutely no use.

Today I have a number of Kenworths and the drivers complain when the heated mirrors fog up!