I have built a custom storage compartment under my custom center armrest for just this reason. It is made to fit my Kahr PM9 and a spare magazine. The biggest downside is that the handbrake has to be set to remove the armrest, so it definitely is not quick-access, or even easy access. It doesn't lock - yet - but is so not an obvious storage location that i don't worry about it, even parked with the top down and cover on.
Before the armrest I would keep it in a soft holster tucked into a modified console storage bin that I still keep in front of my seat to use as a cupholder and general catch-all. The access was easy, but it is completely exposed there, so required moving it to the trunk whenever I left it in the car. I can post a picture this evening if you want to see it, but it isn't anything real special.
I will have the armrest and storage bin at Corning if you want to look at them.
Sky NA 2007 Midnight Blue
Sky RL 2008 Carbon Flash - Naked
Last edited by JohnWR; 05-13-2019 at 04:52 PM.