In 1923 two motor-cars were ordered from Cravens with four motors and to allow the introduction of 6-car trains ten trailers units were supplied by Gloucester.
In 1923 two motor-cars were ordered from Cravens with four motors and in 1925 a five car train was recieved from the same manufacturer. To allow the introduction of 6-car train in 1936 ten trailers units were built by Gloucester.