The 48 remaining, lighter-framed ACP and BCP carriages not converted to driving trailers were classed as "ringer" trailer cars, with the guard's compartment equipment removed and that slightly larger compartment being made available to passengers. This compartment was identifiable by the lack of the word "GUARD" and a white circle painted on the door; the circle indicated to crew members that the vans were not fitted with the handbrake and emergency brake taps normally found in carriages with the raised-profile roof of the guards' compartment. Because of the larger area available, passengers tended to use it for prams and luggage.