Is possible change max speed (540kmh)?
I use handling to set infinite mass and super speed, but it limits at 540kmh using any vehicle.
The other thing is when I crash with another car at 300kmh or more, the car stops magically and the speed downs to 0 at the moment. Is possible to change or disable this?
While I don't know how to increase the top speed, I do know why your car insta-stops after being damaged: Car Godmode. If I scrape against a wall with any vehicle above 250 km/h and have car godmode/the Knight Rider mod enabled it instantly stops because the game/KR mod fixes the damage, which has a side effect of resetting velocity somehow.