I wonder if a survey is needed...
I have observed more coupe owners with this issue than roadsters.
One could surmise the coupe's extra chassis rigidity may be less forgiving in the total package when you factor all things.... tranny mounts, engine mounts, bushings, not to mention the actual MT fluid used, age/wear, and mileage.
whadyathink?
anyone?
"Bueller?"
"Bueller?'