Originally Posted by
cstone
Understood. I like the scenario regardless of how unlikely it may be.
Given your scenario, escape and evade on foot, away from the threat, while using the vehicles as cover. The people most in danger are the ones closest to the threat. If I were in one of the unlucky vehicles closest to the attackers, then the handgun I am carrying will have to do. Three on one is bad odds regardless of the weapon choices, but as you said, it would be a bad day for all involved.
If I were to carry a vehicle weapon, it would be a shotgun and I would keep slug and buck onboard. My biggest concern with keeping a weapon in a vehicle is vehicles are too often the target of thieves. If they get my parked and unoccupied vehicle, I really rather not give them the added bonus of a gun.