Hi,
The scrawled note on the inside of my sunroof under the trim suggests that M&M Trimming Co of Watford Uk fitted / trimmed the headlining in my car. From others I understand they did a lot of work on Jaguars back in the 80's. I've tried calling them without success. Does anybody know if they still exist/have their contact details?
Cheers

 

Looks like mine is also an M&M one, S1 SWB XJ12. Badly in need of pics with headlining removed as mine was butchered at some point so I need to fabricate new motor mounting frame if anyone has pics please

 

Sorry - Mine is now covered with a new headlining.
Webasto denied it was one of their products even though the motor had their name as part of the housing.
I did find out though that the motor was used on some American cars (GM if I remember correctly) and managed to get a spare motor. I now have a working sunroof.
Good Luck!