I bought a used '83 300SD with 93K miles on it, drove it for 8 years to 305K miles. It drove fine all the while I owned it, but keep in mind that mechanically I kept up with most items that needed to be replaced like clockwork. I sold it for asking, ($4,950.00) but that was 13 years ago.

What is a '99 E300 with 350K miles worth? Not much to me. A thousand or so tops I guess - if running - only if I needed a parts car for my low-miles '99 E300. Which I don't need.