Hi all...
I know I'm definitely looking for better functionality, and I think white gauges would probably make a significant difference in my 86 300E since the gauges are, as akry mentioned, top-lit (not back-lit). Additionally, early E-class (86 through 88) had a poorly designed instrument cluster housing, changed in the 89 for better lighting - and it is much better (brighter) in my 89 300TE.
Cavkid! Where did you get your gauge faces, since you are obviously happy with them?