Lemme see... Metric socket set, metric open ends, 1/2" drive breaker bar, extension, and deep wall socket that fits the lug nuts, 1/2" drive ratchet, multi screwdriver, 12VDC air compressor, DVM, e-tool, ax, alcohol stove, Esbit stove, rations, Leatherman, flashlight, various knives, tent, sleeping bag, blankets, spare boots, chem lights, QuikClot, Israeil battle dressing, compass, Petzl headlamp, and a few other odds and ends...
It's only a subcompact Toyota or I'd really go to town.