The average asking price for a used 2008 Mercedes-Benz SL 550 is $13,616, with 87,873 miles on average, across 3 cars for sale at U.S. dealers as of Nov 10, 2026.
Used 2008 Mercedes-Benz SL 550s for sale at U.S. dealers ask $13,616 on average (half ask less than $11,753), across 3 cars. The cars for sale have 87,873 miles on average: one with fewer miles is worth more, and one with more is worth less. To check one car's price against cars of its trim and mileage, enter its VIN in OttoQuest's free Deal Check.
The 2008 asks $13,616 on average with 87,873 miles; the 2007 asks $20,182 with 70,237 miles, and the 2009 asks $20,919 with 70,818 miles.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.
