The new one works weird, sometimes you got rammed and killed while you are in a vehícle roof, its too hard to punish players while their are driving (the game lag doesnt help), sometimes your character keeps fliying on the air for a few moments until touching the floor, its Just not implemented in a good way, i dont know why it got changed
the good old way of surfing vehícles worked Just good. Please reconsider it Mike.