>>815457EDC FAK in my wallet has bare basics: 4 regular band-aids, 4 butterflies, 4 moleskin, 4 each ibuprofen and naproxen, 2 2"2 sterile gauze pads. The NSAIDs are not to kill pain, they are to reduce inflammation (clarifying because earlier posters).
Car FAK has 100 cloth band-aids, 200 moleskin, 48 2"2 gauze, 48 4"2 gauze, 10 single use superglue, snake bite kit, 4 tubes of glucose tablets (I think there are 12 in each) bottle of saline, 10 eye wash cups, 5 sterile suture kits (preassembled with needle and suture), 12 splints, triple antibiotic ointment, anti itch cream, burn cream, 10 Mylar blankets. I put lots of miles on my car, and I like to have my passengers covered in the event of.
BOB FAK is milsurp IFAK, it's got some stuff I have no training with. Like, when am I going to use quickclot? On the other hand, if I need it, best to have it, and maybe there will be a medic nearby who can make better use of it than I can. I've read up on all the things in it, so I should be able to use them well enough to save a life should the need arise.