If it's supposed to do double duty (door and car) then aristobrat's location is good but it'll have to stay angled away from the light beside it. Centered above the door under the soffit might be better horizontally (you want complete door and driveway entrance coverage) but gives a lot of down angle on faces, particularly up close. If you forget the car, then you'll get better approach shots of faces to the front door and cover the driveway better if it's to the right of the door at face height but to the left of "C" and under the soffit. An open door will block the cam a bit but you'll have excellent coverage of folks walking up to the door and waiting there. If the aim is to protect the house, then the door and driveway is the priority and you'll be adding more cameras to fill in the gaps which will probably cover the car incidentally anyway. Here, though, we get a lot more car prowlers than we do home break-ins although the latter is much more serious. I'd almost have two cameras at the door, one at my suggestion left of C and another above the letter slot (name plate?) under the soffit or a bit to the left and have it's FOV crossing the door and looking at the car's current parking spot.
It also looks like you may have a 2nd floor window problem with someone scaling the fence and then onto the garage roof. Don't forget an alarm system and make sure that window/room has intrusion protection hooked in.