Some might know about this. Say you like your Patriots with the tonneau cover, but the one you stole doesn't have it. There's an easy to change that without having to look for another one. You can change or remove the top on a Stinger, Stallion, Patriot or Barracks by pressing the replay button(F1).
I made a video of this.
Not a very exciting trick, but it's the closest thing to car customizing in III without modding.
Edit: new video including the stallion
This post has been edited by RidingHigh on Wednesday, Apr 16 2008, 06:08