Back on topic....
OP, to secure a weapon in the vehicle this a good option. It's about as secure as you can get in a small safe.
Fort Knox Auto Pistol Safe - View All Handgun Safes
I have both the larger versions for the home and they are reliable to open requiring no batteries and keep the weapon secure.
Fort Knox PB1 Original Pistol Storage Safe - View All Handgun Safes
Fort Knox Personal Pistol Safe (PB4) - Handgun Safes