Pick a year below to open the full Mercedes-Benz SLK300 page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.

Fuel economy by model year

Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Mercedes-Benz SLK300. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.

Year Model Combined MPG City Highway Annual fuel cost
2016 2016 Mercedes-Benz SLK300 27 MPG 24 MPG 32 MPG $2,550
2011 2011 Mercedes-Benz SLK300 21 MPG 19 MPG 26 MPG $3,300
2010 2010 Mercedes-Benz SLK300 21 MPG 19 MPG 26 MPG $3,300
2009 2009 Mercedes-Benz SLK300 21 MPG 19 MPG 26 MPG $3,300

How the Mercedes-Benz SLK300 compares against the Two Seaters class

Buyers usually compare the Mercedes-Benz SLK300 against other cars in the same EPA class. The list below shows the most efficient cars in the Two Seaters class for the 2016 model year, the latest year on this page. Each link opens the full page for that car.

Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.