I think a swing camera like the orbit in replay could be very useful in debug mode.
Just use it in replay mode.
I think he means to have the replay 'orbit' camera controls work while using the chase view when driving. Probably a good idea to allow some camera adjustability for the chase view primadonnas.
Yes. Allow the camera be back further and higher up or to swing around to the user's liking if you want, but I was just considering it for physics editing so you can swing the camera and still drive the car and be able to look at the suspension points moving.
While in debug mode, it is possible to press F5 and F6 to show / hide the chassis and wheels for a better view of the suspensions links.