For vehicle ConcealCarry, I pack a 45 with laser sight.
Also like to pocket carry a nice little Ruger 380 which is easily “not visible” on person.
Yeah, I know all the low power arguments against 380, but it’ll do the job up close and personal and considering most wanting to hold you up or assault do not really look forward to getting double tapped, even with a 380.
The 380, properly loaded, gets pretty glose to a 38spl ballistically. That means somewhat hot-loaded, not factory, and ofc you don’t get as heavy bullet.
There is, believe it or not, a great bulk of loads from France aiming to do this with the 380.