I inherited a bunch of parts from the “art car” owner after it got sold. In the box are a pair of black poly trans mounts stamped “AKG E30M”. These are bolt through design. I looked on their online catalog and couldn’t find these exact ones. They are taller than the yellow poly ones (not sure where I got those) that are in my car and also the OEM’s which match my yellow ones in height. They are round, so don’t resemble the M3 mount.
Edit: google images found this, which is what mine look like. I would not be surprised if they came from Ireland.
Before I toss them up in the classifieds I just want to be certain they fit the E30.
Mystery AKG transmission mounts
ddavidv
#1
swolfe
#2
Not sure if this helps you much, but I measured a set of the Condor Speed Shop mounts before I installed them.
I can post the dimensions here if you want to compare them.