From my old Rover days I recall the T16 engine arrived at the time of the 1991 facelift which rover called 1992 model year cars - the ones that had the grill on in the bonnet. The M16 was fitted upto 1991 in Rovers. No idea what Morgan had laying around but suspect later cars will use the T16. I bet there are more Morgans running around with this engine than 800s these days.