I've tried to save a custom car in Trevor's home garage, and it was saved: I left and came back as another character and it was there.
But when I took it for a ride, and then died, I couldn't find it anywhere. I know there were some bugs with this, but I saved the game, and the car did stay in the garage- but when I left it and died, it disappeared (it hadn't been destroyed).
What do I need to do to get my car back?
I'm playing on the PS4.