Thanks for all the comments in the progress thread, and thanks to those who posted fixes/hints for building the model.
This one fell together like it was a Tamiya kit. Well...the interior needed attention, and Burago seats were modified to fit, and door panels too. The modifications were a breeze. The seats are much nicer than the 575 seats.
I really love the color combo...but I'm going to use a more expressive color on my 575. I saw a white/red 550 today, wow. Nice combo. Saw a Superamerica and two 550 Barchettas too. Lots of cool stuff at the dealer

.
Here it is (glass isn't glued in yet, that's why it's not fully seated):
Check out the mesh...drew it w/my .001 pigment liner

.
Progress thread here:
Maranello Progress Thread