Could somone please clarify the models discussed here. My records (Canadian sales) show that Mercedes sold the W126-bodied 350SDL in 1990 and 1991. The engine was the 603.970 and was rated at 134 HP.
In 1992 and 1993 they offered the W140 300SD. In 1994 and 1995 they called the same model S350 TurboDiesel. All W140 cars had the 3.5 L6 SOHC turbo-diesel engine that was rated at 148 HP. Were US sales different and what engine did the W140 have?