I get in the car with my guns in the same place as I always carry them. Today it is an N-Frame strong side in a J.I.T. and a K-Frame weakside in a J.I.T. worn for cross or twist draw. These are both OWB and are completely concealed by clothing. Even in my Mini Cooper S they don't cause a problem. Guess I have been carrying so long they just fit me well...
I suggest whatever you are doing you practice getting out of your vehicle and deploying your pistol, as well as deploying it from the inside. Be sure to us a visual stimulus. Carrying loose off the body in a vehicle is never recommended. Just got done doing a road trip from here (Mt Crumpet) to Raleigh NC. 8 hrs down, and 5 back. the entire time I wore my G19 in a MIC holster in the APEX position. Very comfortable and I will be doing a review soon. Most belt holsters are designed as great carry options when you are standing up right, but are often poor deployment options when you are seated- George
I found some magnets at the Indy 1500 a few months ago. 2 smalls screw into the side of the console holds it in place and my Ruger attaches right to it. works in conjunction with a quick release Velcro strap to ensure it doesnt pop off on big bumps. But the magnet itself holds it in place pretty secure and is coated to keep from messing up the finish.
If you dont want to carry on your body when in the car, there are plenty of holsters out there made for the car. They mount inside your console or on the side of the console or inside the glove box. Much safer way than leaving loose inside the car.
I have a Glock 22 and a Ruger LCP. I don't like to take the Glock on long trips it does get uncomfortable in the car in my Blackhawk Serpa holster.
I carry the LCP in a Nemesis pocket holster comfortable but a little slow on the draw from a sitting position especially when wearing jeans.
I am looking at the car holster now to securely mount the Glock in easy reach and can keep the LCP in the pocket just in case.
I find carrying in the car depends a lot on the holster. I drive a lot and I find if I am carrying OWB I am fairly comfortable. IWB is a different story depending on the weapon. I am like several other posters here in that I generally stick my weapon in the center console if I am going to be driving awhile and reholster when I arrive. Obviously if you carry IWB with your shirt tuck reholstering can be a big pain.
I can't stand wearing holsters while driving. I'm a fairly big boy and can't find a comfortable one unless I go the ankle route.
My Ram 1500 doesn't have a very good place to keep it. So I keep it in a small case in the door/map holder. Not the most convenient when I need it and need to find an alternative.
Brother-in-law has a Ridgeline. The center console slides apart and he mounted a metal holster inside there, quite the Batmobile setup.