Well here is my thoughts.
First off, how safe is a gun if it's just sitting on the seat? Hit the brakes hard or have a wreck the gun goes flying and becomes a projectile with a possibility of accidental fire.
Also, I like the thought process of figuring out a way to OC in an automobile. However, how assessable would the weapon really be the way those pistols are holstered? I mean I don't think I could grab my pistol quick enough while it's in the upright position it would be, in those pictures. You have to almost get up out of your seat and awkwardly turn your right hand to grab you pistol. In any count I think you would be dead before you had a chance to draw.
The one shot that shows the pistol on a slant towards the passenger floor would make me think twice before seating next to the driver. The muzzle would be pointed to the passengers legs. This doesn't hardly seem safe @ all.
I think the best choice would be like the one that is holstered under the steering wheel or not at all if you can't CC.
Again that is just my thoughts and what seems to be the safest. Many of you folks are worried about where the muzzle is pointed so your trying to figure out the best place to mount for OC in an automobile. However, you need to think about the muzzle pointed @ the passengers legs and being able to draw if you need too...
"Democracy is two wolves and a lamb voting on what to have for lunch , Liberty is a well armed lamb contesting the vote" - Benjamin Franklin