Unfortunatelly in Arma3 if the player car loses the windshield, it does not affect the car's control in any way.
The situation can be corrected very easily - When the player is without a windshield at high speed, can be added blur for player visibility and wind sound.
Such a detail would add value to the windshield for all cars
If this is not done then, there is no difference between car with windshield or with car without windshield. It is not natural