Might as well chime in for the many times forgotten w116. Best 5-cylinder S-Diesel around. NO emissions. That's right, no EGR to mess with, and looks from the people around you at stoplights and gas stations are priceless. W116's are not nearly as common as w126's but they are faster and most people say they ride and handle better. Cliamte control issues are not a big deal, someone will chime in after me and say they are. Just send me w116's with CC issues, I'll take it off your hands.
Have a Nice Day
David