A2QFI...
GR9 had an upgraded engine SFAIK
See above, I beg to differ. The GR9 has the same engine (105) as the GR5, GR7, T10, T12 (well, some of the latter
).
GR7
A, GR9
A and the (other) T12s (someone didn't want to call it a T12A since it would be a new type
) had the big motor (107).
NoD