The only one I have so far. Other than the amp rack and sub box, it's just stock carpet.
The carpet is kinda dirty (car has 176k on it and the previous owner used it as such) the interior cleaned up pretty nice, but I'll replace the carpet in the trunk eventually.
I can still get to my spare just fine. (And jumper cables and jack)
I'm thinking of making a trim panel for the bottom of the rear deck and on the trunk lid, but my unemployment runs out in a couple of weeks so I need cheap projects so I can get ahead on my rent.
I'm thinking I might work on my door panels next, tho...
The stock 1st gen Neon (like mine) has pods on the doors for the power windows that are right where I rest my knee. I bought a set of 2nd gen door panels which have the switches on the top of the arm rest like a normal car. I plan to adapt the 2nd switch pod into my new design. Thing that sucks is I'll need like 4 yards of vinyl that is similar to my interior...at about $35/yd for what I like to use!
BTW, the blue tape is holding the trunk seal in place, since I ripped it early on in the build when I was leaning on it. Oooops. I'll pick up another one at the JY...and maybe a "new" rear seat in case I decide to change.