Can anyone tell me if coupes ever were fitted with one for the passenger footwell?

My 16vt was really draughty so I made one up out of a piece of black foam cut to the irregular shape under the glove box, backed it with some plastic netting glued on tight to give it rigidity and then velcro'd it to various places and it worked quite well.
So well I whipped it out when I sold it ready to fit to the Bee if necessary in t'winter.