The rain sensor started to be fitted on W140s on mid-1996. So, post facelift 1995 and early 1996s models will not have it.

Going back to your original question, about some of the cool options:

-Rear electric bench seat or individual rear electric bucket seats.
-Rear armrest fridge (2 bottles or 4 alluminun cans capacity).
-Trunk mounted fridge (6 bottles or 12 alluminun cans capacity).
-Rear side window shades.
-Rear electric sunshade or rear electrically operated curtains.
-Radio wireless remote control.
-Individual rear A/C system.
-Two-tone nappa leather.
-Multicontour adjustable front and/or rear seats.
-Trunk double safety lock.
-Driver's side factory mounted fire extinguisher
On post 1996 models:
- Parktronic
- Xenon headlights
- New wood finishes (besides zebrano and burlwood)


Note: Some of the options mentioned might not have been available for the U.S. market

__________________
A. Rosich
CL 500, 1998
S 500 L, 1998
E 320 T, 1995 [Sadly sold ]