 Later batches had rare Willowbrook bodies before the final batch reverted to the standard 13'8" ECW body, by that time the NBC's standard vehicle.These cleared the last of the AEC Regents from normal passenger service in the early 1980s although some had a swan song on the park and ride for the Open Golf and Sandwich, whilst others were used on contracts and for driver training.On Sunday 26 October 1986, all the bus companies were deregulated.