Vanguards, equiped with speed retarders rather than brakes, bet they have not improved with age. Worn cam bearing = run main bearings, wet sleeve engine and leaking lower sealing rings, twin & triple valve springs and dropped valves every 100.000 miles. Then there was that gear change linkage to contend with, Apprentices don't know they are alive today. Still have a bit of a soft spot for the old girls though.