Great post, very useful - Thanks!
Scotius, if it helps you feel better - In addition to mk3_cooper_s, I also have a car with similar oddities, mine was registered on 1/3/1977, on an R registration, and I have bits of MKIII (no reverse lights, vinyl seats without recliners, older type brake master cylinder) but some MKIV parts (later subframe mountings, wipers on stalks, hazard lights etc). We owned the car when it was new and so know that it has not been messed around with during its life. It seems Leyland used up all of their old parts to save costs before using the new ones, so just as mk3_cooper_s says, there are lots of occasions when some of the cars around the MKIII-MKIV changeover have bits missing or some that you might not expect them to. I think it was the same with the MKII-MKIII changeover too, with some trim and electrical items (ignition key on steering column etc)
To answer your second question, I always (unofficially) used to look for the internal switchgear and subframe mountings to distinguish a MKIII to a MKVI - i.e. Hazard Lights, Wipers on Stalk control etc, along with the front subframe mounting type etc. But as you have discovered, there are many times when it's not quite clear which model you have!
Regards, Goops
Edited by Goopster, 28 April 2009 - 02:53 PM.