I'd just look for a way to keep my normal carry gun secured as best as possible in the car when I couldn't carry it. I don't like the idea of leaving a gun in a car unless you positively can't avoid it. Unless it's securely stored in a bolted in mini-safe or something all it takes is a crow-bar for someone to steal it. Then you're out a $400 gun and more importantly, a criminal can take that gun and use it to shoot up a playground or convenience store. That's avoidable if I just keep the gun on my hip instead of leaving it in the car.