I've owned 2 E39s, the last one a 525 M-sport. The drive was out of this world at the time. The E60 and the F10 left me cold, and I currently drive an E92 335is DCT/LSD with 440hp courtesy of MHD. This is a very fast and engaging drive, but boy do I miss the comfort of the E39.
I did recently try a 530D G30, but while it's the best thing I've driven since the E39, I still feel a bit disconnected from the road.
I'll probably get one when I can't stand the sub 4s 0-60 335is any longer
BTW: The sound and feel of the E39's doors closing...I don't think you can find that anymore