I recommend Taurus Judge. 5 shot revolver which fires 45s and shotgun shells. I live in NJ, so I am not allowed to carry until I get out of here.
Ditto for MD.
My fav as well. Have a 2" snubbie loaded with shot (don't want to take out a bystander). At the least, the bad guy is going to be rolling around on the ground yelling "OW,OW,OW" - especially if hit in the face.
Some argue against shot, but I'm figuring a carjacking will be at belly button range and the shot will act as a frangible slug + the safety factor.
CCW is a Ruger LCP .380 with Zombie (soft/hollow point) loads.