problems with the new driver

I have heard only today that the choirs new driver is causing some difficulties. He is refusing to slow down when he is asked to do so and now he is getting angry. Only last week he went into the back of a car because he was going to fast, he had to go to court about it today, he has a amount of control over them as he says that they will have to drive themselves if he leaves. The Group need to make their own decision about what to do in this situation. please Pray for them.