Yes, I was smart enough to test fit them in the dealership and sure enough they just don't fit right. Compared with the new F13 mats, the older ones are smaller. Also as you noted, check the label on the end of the packaging and it says E64.
BTW Still waiting to see if BMW does factory mats for the new M6 or if a decent third party mat comes around. For now sticking with the factory plain black mats and the winter mats.