I just ordered my 630 cabriolet, it has got some upgrades as compared to the old 630 cab:
start/stop button
New key which is definitely better looking than the old key (and I'll ask them to reprogramme the key to open/close the soft top remotely)
CD player that can play MP3 music (I really hate to change CD even though it's equipped with 6 changer and 1 CD slot)
GPS system with 8.8" LCD panel & DVD reader (only for navigation data)
Feb 06 production
I put in the lights package, upgraded sound system to Logic 7, plus BlueTooth phone adapter. All in, the special indent will arrive late March or early April 2006. Yucks, I can't wait!!! Anyone got good lobang to make my car arrive earlier?!
As for 650 E63/64 model, no price yet as of 20 Nov 05 the day I placed the order for my 630. If money is not an issue to you, just place in an order, it can't be deviating too far away from their list price!
I don't think there's any special color available, not unless you opt for the "Individual" package. FYI, the medino leather alone sets you back $30,000+, plus its an individual package, that wraps up to about $41,000+ addition. I think its wiser to spend the $41K elsewhere but its your choice!