Date registered: Feb 2008
Vehicle: 2004 W220 (S430) ; 2001 R129 (SL500) Sport
Location: Alabama Gulf Coast--formerly Charlottesville, VA
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I recently averaged 83 mph over a stretch of 300+ interstate miles coming back from the Sebring races. My S430 averaged 25.2 mph during that run. I routinely average 22+ mpg in mixed driving. At 75-80 steady mph I usually get 27+. All this is with the AC on, cruise set when possible, and not paying particular attention to slow acceleration and other mileage-adding efforts.
"Don't pick a fight with an old man. If he is too old to fight, he'll just kill you."--John Steinbeck