The S-Class that followed the W126 was the W140, between 1991 and 1998. It might not have pleased everyone, but it sure was not a bad car, quite the opposite. When I changed over from my W126 to a W140, S500, it was a big step forwards in terms of equipment, comfort, riding pleasure etc.
The W140 was quite a brilliant car and quoted more often than not as the best luxury car of its generation.
It did look a bit imposing, but the newest S-Class has picked up that theme again - more "chunky" and showing off its size than the W220.
Guido