Here's a neat site with the S-Class timline documented briefly from beginning to end. One great quote:
'W126 retained its title as The Highway Loss Data Institute's "The Safest Passenger Car of the year" in 1989.'
Its just reassuring to know. Back in college I drove an ambulence as an EMT for two years, I've seen some terrible accidents and now that I have my own long commute to work I wouln't drive anything else.