I have a nice one in my pickup truck that I got courtesy of Uncle Sam. It was past due date so they were going to pitch a never been opened, metal cased first aid kit. It has everything in there and I have used it many many times. Asprin, butterfly, knuckle, bandages, tweezers, scissors, ace wraps, instant cold packs, assortment of tapes, antiseptics, water purifier tabletss, etc. It's awesome. It is a little big but it's flat so it stores very easily. Probably 20"x15" or so. Maybe a hair bigger. I have removed some stuff and added things. I have added large wound dressings, Chem-lights, Head lamp, clamping pliers, and a few other things that slip my mind right now. I had the room for it in the box, better to have it than wish I did. I did have a suture kit but I lost it somewhere a few years ago. Never did replace it.
It's not a problem, it's a opportunity for a solution.