when I read this, it feels like my grandparents generation.
The assumption is that his needs and his car his job etc come first.
OP, the car belongs to both of you. You have as much right to it as he does.
So with a normal couple, that means that you negotiate how to make that work.
If one person does what your dh is doing, then they are not working as a team, they are not putting you as a couple first, they are putting themselves first.
Your comment about him being a typical selfish man. I don't buy that.
My dh and my son, father, brothers etc, do not behave like this.
yes there may be some huffing and frustration at having to change things round, but fundamentally they understand that you BOTH have to work together to make this work, and that means both of you making an effort. Getting up is not compatible with his schedule But you are a family, and the schedule has to work for the whole family, he is not a single person.
There is definitely an element of sabotage here. He is not willing to put himself out by one tiny bit to make your studies possible.
You already walk 4 miles to and from uni and 4 mile back from the station. That is about 3 x as much as I would be willing to do.
Time for a serious talk. Either he gets on board, and supports you properly, or you will just leave with the car at 7:45. If he is not ready, then he can walk/taxi/stay at home. I would do this to make the point that it is not HIS car.
But then practically I would also think about other ways to make this work, so I didn't have to have the battle. Bike, motobike, taxi etc.