Hello Katja,
I find your suggestions very nice. The upper floor looks so neat and tidy that one wonders how and why anything should be done differently at all.
Actually, the rotation of the house and a side entrance were already a topic for us very early on and quite a controversial issue.
I actually only saw several advantages. My wife absolutely did not want it. For her, it was very clear that the eaves side must face the street, the bay window should not face the neighbors, and a side entrance seemed uninviting to her.
Since I can understand that and the direction is not so important to me, even though I see advantages in it, we agreed to do it the way she wants (to express it in the words of 11ant, here stood my "nice to have" against her "no go").
To answer your question, we have two cars. Due to our larger family nearby, at least two additional parking spaces in the yard would be nice (nice to have). Currently, we have a carport, and that is fine for us.
I spoke to our planner today. He will get back to us next week with a new proposal. He wants to change the staircase into a "double-bent" one and make the house wider. That will partly be similar to your first suggestion, and many negative points will be resolved that way. He wants to make the bay window in front wider, put the door in the middle, and have wardrobes on the right and left.
I am curious and will get back to you as soon as I know more.
By the way, I looked at our planner’s very first proposal again; it didn’t have many weaknesses of our last plan. These actually often only came through our wishes (living room to the left, kitchen to the right, too much unused space, etc.). Then it was changed based on the first proposal instead of thinking anew. I found that an interesting insight.