Thanks guys. I think it will be noticeable in the Mini as it is pretty short geared. Even with the new 3.1:1 final drive the top speed will be maybe 90.
I have always had the aluminum pressure plate in the Porsche so if I went with the light flywheel it might not be to noticeable.
Just wondering. Few more days and the rain supposed to quit and we'll get a few days on sunshine so I'll be able to take the Mini out for a test.