This deserves it's own thread due to the mind altering superbness of build quality on a modern Rolls !! Of special interest here is the welding of the all ali body shell, seen around 5 mins or so in. It looks like pulse mig ? They make a big deal out of the skill required to do it. Enjoy.
http://www.youtube.com/watch?v=mMHiAd0eRsg
http://www.youtube.com/watch?v=mMHiAd0eRsg