3x car system isnt good many cars r bugged.
True.
3x is the latest version and most hacks are prevented in it.So moving to it will help you from crash.
There are still crashes on 0.3x.
But it is not true that the most hacks are prevented there. Most of the hacks that work on 0.3d, work also on 0.3e and 0.3x, and most of the hacks which do not work, are not really hacks which used by most of the people.