Sir Dirk Bogarde didn't like motorbikes. New Cross stars Ron Johnson and Ron Howes acted as doubles for the action shots.
This movie focuses on the activity of speedway racing, which was hugely popular at the time of making.
The original title for "Maniacs on Wheels", "Once a Jolly Swagman" refers to the first line of the classic song, "Waltzing Matilda".