I don't think of them as the same, I think of them as separate options. If I'm going to work I won't carry (there's already heaters there anyways) but I like to stay with one in the car just in case I'm not going out out but still going out. Drive-thru? I got in the car already. Quick lil pick-up in CAC country with all these rowdy wypipo? Got one with me.
If I'm going out-out I'll take something else to CC while the 'car tool' stays in the car.
I like to keep one of my pistols with an external safety with one in the chamber and an extra mag in a car lock box (you can grab one offa Amazon or such). The one I got fits under the seat and opens at the touch of a finger(print).