1) My phones have an option to transfer ALL as well as being able to transfer individual phone book entries from either Phone or SIM. I don't know what options the Nokia offers.
2) I either have the phone in my pocket, on my belt or resting in one of the cup holder recesses beside the gear shift and signal is fine, it varies up and down as one would expect. I am on O2 network.
3) I hadn't listened to the phone from the receiving end so I got my wife to phone me from the car and it sounds fine. It does have a speaker phone sound but that's what it is and it does not sound tinny or have echo.
4) My Moonroof operates as per manual. Press open for about 1sec and it opens almost fully. Press open again to open all the way. Press close for about 1sec closes all the way. Up and down also open and close fully if pressed for about 1sec. Are you holding it too long, try a shorter second :)