I'm still trying to find the perfect Merc for me, and I found an '03 S500 with 4matic, but the EPA estimates say 14 and 19 mpg and that's the same as a Rolls Royce Phantom with a damn 6.75 L V12. I don't have the funds to visit the pumps that much. I really want the car though, it has keyless go, ventilated seats, 113000 miles and its $16000. The same people have a 03 S500 w/o 4matic for $700 less and 17000 miles less, but at that it doesn't have the vent seats or keyless go. But I can do the 16/23. SO I'm wondering if the mileage is better than the estimate