It all dpends on the amount of $$$ you're willing to part with. I had a 1984 190E 2.3 8V with ful AMG package. Interior-wise I had the following (no one ever said it looked "dated"): Zebrano shift knob, 3-piece Zebrano wood kit (triangles on either side of the instrument cluster and glove box), Recaro sport seats (definitely required due to the great handling -- can you say "Butt-slide-on MBTex"?), AMG steering wheel, AMG-logo mats, updated Blaupunkt CD/stereo, and didn't quite get to the white-faced gauges. Any (or all) these updates would definitely "spiff-up" your interior.