This may have been posted here before... if not, some may find it interesting, but it focuses more on the Lexus, since it was the new kid on the block in 1990. Someone on the Lexus site posted this. As an owner of a 1991 LS400 and a 1988 S-Class, I thought it was interesting, but imo the Mercedes is just as fine of a car as the Lexus. In fact, my S-Class MB is less nagging, as its much easier to service.
http://videos.streetfire.net/video/T...025_208152.htm