Difference between coupe and convertible floor mats

[word is bond]

So it seems that E30 floormats are NLA, but some suppliers still have convertible floor mats in stock. Can someone tell me how they differ?
I'm in desperate need of new mats for my 318is and it seems I have to decide between 1 series mats or e30 convertible mats. Is it only the rear mats that differ for the convertible? How so?
Thanks

[MNE30]

The convertible is narrower, so the floor mats are narrower. (Well, the interior is narrower.)