I love the idea... but I would hate to pay $50 for a super bargain El Cheapo Uncle mikes / Bulldog / Airsoft holster with a few additional velcro straps.
I think I can rig the same thing up from one of my spare holsters and parts from my junk bin.
I normally pocket carry, so when I get into my car, I shove the pocket holster between the seat and center console. It keeps the gun secure, accessible, and out of primary view. I keep my forms clipped to my visor, so my hand never goes anywhere near it.