drmini in aust wrote:
OK so I've had 2x MiniMatics, a 69 and a 70.
Both have bodies with
YA2S5 prefix....??
WTF?
And NO, none of the boards with this Mini body info seem to list it.

My guess (and it is a guess because I don't have anything from BMC to prove it) is the
5 would mean "matic"
Example....
Morris 1100 (because I have the book!)
YMGS1 = Morris 1100 Deluxe (they were all deluxes)
YMGS2 = Morris 1100 "S" (1275cc)
YMGS3 = Morris 1100 Automatic
YMGS4 = Morris 1100 Standard (the poverty pack, only a handfull built)
YMGS5 = Morris 1100 "S" Automatic
See how the last number changes the model
So with the first series of mini
YMA2S...
1 = 850
2 = Deluxe
3 = Mini Minor (later 850?)
4 = Auto
Then the second series
YG2S...
1 = K
2 = ?
3 = ?
4 = Cooper S (mk 2)
5 = Matic (?)
6 = Mini 1100 (poverty clubman?)
7 = Mini Clubman
8 = Clubman GT
I hope this is right!