I understand that they also made a couple of coupes and one special order landaulet for the Pope. You could order just about anything you wanted when it came to 600's since most of them were built on a custom basis, one at a time.
I'm doing numer 1203, a SWB in black right now. I think they only made a handful of landaulets - I remember Kim Jong Il of N. Korea having two of them. The rest of the country ate grass in in the meantime.