So many things I don't like.
(don't worry, I know I don't -have- to like what others do, I only have to like what I do, but here on a discussion forum, I'll add my thoughts. You may like them even less than I like some of these ideas...)
The magnet mount. In the image, it's at least pleasing to see that the pictured Glock is uncocked/empty. Because having a striker fired semi-auto with -NO- manual safety mounted with any method that doesn't securely cover the trigger is a Plaxico Burris kind of idea, unless we are now talking about carrying a defensive handgun without a chambered round...which is a whole other "bad idea" discussion, but may be even more questionable if you need two hands to ready the pistol while driving a vehicle.
The idea of leaving a gun in the car in cubbyholes and consoles in the first place is one I simply can't get on board with. Storing a gun in one of these places when you are traveling somewhere, especially on a long trip is fine... but parked in the driveway? Street in front of the house? Supermarket parking lot? Or any of a litany of other places where it might be quickly and easily stolen? Not for me, thanks.
There's also a royally nasty can of worms that get opened in the event that anyone else in your circle has access to your vehicle.
That's a felony in many states, if your wife or older children happen to borrow the vehicle with a gun stuffed somewhere within reach if they don't happen to also possess a valid license for carry.
Okay, this is where most close with "flame suit: on", I'll say that in my own different way.
Yeah, I know each reply that takes issue with _____ I just posted will have wonderfully specific opt-out clauses that fit exactly them.
"I never park anywhere"
"nobody borrows my damn truck"
"ain't my fault or concern if some punk steals my gun, that's illegal anyway"
Sure, I get all that. I'm not even suggested ANYONE doesn't do it, I'm explaining why I don't do it.
And yes, I do have occasion to leave a gun in a car -- when I go somewhere that I'm not legally allowed to carry. But I don't dedicate one to the car to always be available to be stolen or to be there to issue a felony to anyone that might end up having to take my vehicle in my absence.
Don't be offended at my post.