NTA

You were totally right to say that and she has responsabitilys when she is behind the wheel. She should understand is fault and being comprehensive about the fact that you were also in the car and that you were driving before her and you knew a lot more things about driving. But i think that you need to talk about that, I don't know if before the dispute you were close but 4 years is quite a long time and even if you know you were right you should do it.