May 1956
The Mark D had an identical body style
to the later Mark C, with a Standard/Deluxe 2/3 seater Tourer and
a Standard/Deluxe 4 seater Family Safety model available. They used
the new Villiers 9E, 197cc engine with a 3 speed direct change gearbox,
4 plate clutch and a heavier drive chain. All models featured a
12 volt electrical system, separate sidelights incorporated into
the headlamps, chrome headlamp hoods, front wing side flashes and
a grab handle on the dash. Deluxe vehicles had engines with a Siba
Dynastart and 
bumpers were fitted front and rear. Like
the Family Safety models,
Tourers also now had the same rear apron
fitted between the body and the bumper. Any model could be specified
with a glass fibre hard top.
Length 9' 10", width 4' 9", height 4' 2" and weight 520 lb.
October 1958
All Family Safety models were fitted with a 4 speed gearbox and were then designated "Family Tourer".
November 1958
The "Family Four" had a hard top similar to the Mark E/F and was first shown at the 1958 Motorcycle Show at Earls Court. Priced at £339 10s 6d (£339.52½p), only one was ever made and it also became the last Mark D. The registration number was MCK 509.
Chassis Number Range: H/5/11797 to J/10/15570
Total Mark D Production = 3,761
