GTA Online allows you to customize your rides extensively, however there is always room for growth. Since this is a game in which you've got good chances of getting shot at, and being forced into some dangerous maneuvers when racing and escaping, more upgrade options would complement gameplay greatly.
GTA Online sees some seriously tense battles (provided you're playing free-aim) and some heated races, with a large stunt aficionado subculture to go with it. Vehicles are central to all of these activities, with them being the primary means of getting players from one battleground to the next, they're the things in which you race (obviously) and stunt (also obviously) in.
Something that has been annoying several players is the possibility to one-shot someone through a window with the lock-on aim mode. Vehicles with large windscreens and windows act as large metal coffins instead of methods of escape in firefights due to this phenomenon, which prompted the idea of the first suggestion — bullet-resistant windows.
