Ability to spawn different vehicle type without returning another to storage

Imagine if you are on a run and you could really use your boat or aircraft, but to be able to call those, your current getaway car gets returned to storage.

My suggestion is that we can call i.e. helicopter that spawns on airport, but the car you're driving currently doesn't get returned to storage (same with boat)

Since the vehicles are already grouped to land, water and air, this would put a really good use to it.
+1, its annoying when u want to board a personal heli but cant drive to it in your personal vehicle.
Yeah I was thinking about this yesterday. However, I would make it so the boat/plane/heli is not actually 'yours' until you enter it, but it shows on the map etc. as I'm not going to make it so you can have 2 active personal vehicles at once.