If we're gonna have car customization in this game, I want a system like Saints Row--you customize a car, it's yours forever. If it's destroyed, you can pay to get it fixed back up. It's why I never customized any cars in SA until I had a boatload of cash to waste.
XBL Gamertag: JWRebholz
PSN ID: jwrebholz
...No, I'm not very creative when it comes to this sort of thing.