I bought a 95 S320 with 50,000 miles on it and it now has 104,000. It hasn't missed a beat. I should mention that the car had all the standard problems fixed by the previous owner under warranty. These included the head gasket, the timing chain cover, close assist pump, wiring harness, and blower regulator. I wouldn't buy a mid 90's version if these items weren't adressed.
1984 300D Euro