I probably would shy away from keeping a gun in the car at all times, unless we are in some sort of emergency. I know it is tempting but probably not worth the BS unless you have a CCW anyways.
If you do I would be conservative and err towards a "less evil" gun. I would think a nice cowboy action 12 gauge with ears (IAC) or 30-30 lever would be a good choice. Alternatively a short enfield carbine or maybe a Mosin. Something you could count on but not necessarily be a problem. Also MAKE sure you have the serial number noted and if the car get stolen report the gun stolen.
If you do I would be conservative and err towards a "less evil" gun. I would think a nice cowboy action 12 gauge with ears (IAC) or 30-30 lever would be a good choice. Alternatively a short enfield carbine or maybe a Mosin. Something you could count on but not necessarily be a problem. Also MAKE sure you have the serial number noted and if the car get stolen report the gun stolen.