I have a Countryman that I use to carry my large dog in.

I recommend this cargo cover in size large: https://www.amazon.com/dp/B06WGRP38G?ref=ppx_pop_mob_ap_share

And if you’re interested, these bars that attach to the back of the seats fits perfectly along with the cover as well: https://www.amazon.com/dp/B07RL61N8T?ref=ppx_pop_mob_ap_share

I have the cover over an additional weather tech cargo mat for even more protection

We got this barrier from Amazon. Keeps our GSD from crawling into my lap while I’m driving.

rabbitgoo Dog Car Barrier for... https://www.amazon.com/dp/B07RL61N8T?ref=ppx_pop_mob_ap_share