Thanks to everyone for all the responses! If anyone has any other observations/comments on what you see, they would be most welcome.
Koan: I guess it could be used as a coat hook if you pull it down. Don't know if that's intentional. It's actually the sunroof handle. You pull it down and twist 180 degrees to unlock, then pull toward the front of the car to open. And the knobs in the rear doors are indeed lighters.
pompy: I had the car fully repainted at the same time I had the seat covers installed. I don't recall the name of the color, but it was as close to the factory color as I could get it. They did an excellent job.
I also forgot to mention that there are reading lamps in the rear on either side, between the rear doors and the rear windshield. I don't know if this was standard on these cars, but they've always struck me as being a nice touch. And as somebody already mentioned, the rear seats are heated (no longer functional).
Forgive me for my ignorance, but I believe that only the 6.9 came with the hydraulic suspension as a standard feature. This car had this feature when I bought it, but I have since removed it because it was causing so many problems. The steering column lever for the suspension is still there though. And it's still a very smooth ride.
Here's a picture of the engine:

Anything that jumps out at you as non-standard?
One last thing: the car has automatic door locks that work on some kind of pneumatic system. When the driver's door is unlocked, all the other locks slowly slide up. Is this common?