A week ago I had the privilege of seeing Bonnie's new X up close. I felt inside the gab below the hood lip next to the Tesla logo. There are slats in there that would prevent any animal larger than a small mouse from getting inside.
This means that, among other things, the spaces people park their X's in should be relatively free of creatures equal to or smaller than a small mouse. Otherwise it could be a Raiders of the Lost Ark moment or other type of event. I'm still not certain if other parts of the vehicle have something like a "cockpit zone" that has more comprehensive barriers that are safer from this.
This dovetails nicely into my theory that all EV car garages should become "more interior than they used to be as ICE garages": more sealed from the elements, more insulated, more sanitary, more air conditioned to room temperature. The car will like it better (faster and more kosher battery operations), you will like it better (faster, more predictable, and more comfortable operations), and it keeps the theory of Snakes and Mice relatively constant with the interior of the house. I still maintain there needs to be an air barrier between garage and home, to avoid off-gassing of various car components (batteries, electronics, drivetrain & tires, latent ICE leechings) from entering the habitated part of the house, such as a good heat recovery air ventilation system (
Heat recovery ventilation - Wikipedia, the free encyclopedia), something you should also consider for ventilating other parts of your home (since I count at least 3 places that need dirty air expelled: bathroom, kitchen, and the new air conditioned EV garage). Of course, I see this as easy since I'm in construction; this means that EV owners will have to put this further down on their "wish lists" than I would, but it should be there nonetheless, in my opinion. Otherwise, these "small creatures" (of all types) will just willy nilly come in from the regular garage large venting areas (garage door, etc.), and make refuge/habitat/etc. Hopefully, I'm completely off base here and this is not a problem at all, and you won't end up with Finch eggs in your frunk (or other things).