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BMW 2-Series vs. Mercedes-Benz SLK MPG

Chart is based on 4 fuel economy reports for the BMW 2-Series and 18 fuel economy reports for the Mercedes-Benz SLK.

BMW 2-Series MPG

BMW 2-Series BMW 2-Series 2022 36.5 MPG Highway Percentage 55 percent BMW 2-Series BMW 2-Series 2018 32.0 MPG Highway Percentage 99 percent BMW 2-Series BMW 2-Series 2018 27.7 MPG Highway Percentage 70 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2022 2dr Coupe turbocharged 255hp 2.0L I4
8-speed shiftable automatic RWD		 hills med light 3 0 43 55 70 36.5  
2018 2dr Coupe turbocharged 248hp 2.0L I4
6-speed manual RWD		 flat med hvy 0 0 1 99 70 32.0  
2018 2dr Convertible turbocharged 335hp 3.0L I6
8-speed shiftable automatic AWD		 flat med light 5 10 15 70 70 27.7  

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This page shows only averages. See all the BMW 2-Series fuel economy data.

Mercedes-Benz SLK MPG

Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.8 MPG Highway Percentage 70 percent Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.0 MPG Highway Percentage 50 percent Mercedes-Benz SLK Mercedes-Benz SLK 2008 25.5 MPG Highway Percentage 80 percent Mercedes-Benz SLK Mercedes-Benz SLK 2007 25.6 MPG Highway Percentage 68 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 23.4 MPG Highway Percentage 85 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 24.7 MPG Highway Percentage 60 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 23.2 MPG Highway Percentage 53 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 24.0 MPG Highway Percentage 90 percent Mercedes-Benz SLK Mercedes-Benz SLK 2003 26.2 MPG Highway Percentage 79 percent Mercedes-Benz SLK Mercedes-Benz SLK 2001 25.3 MPG Highway Percentage 50 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2009 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat med light 0 10 20 70 100 21.8  
2009 2dr Hardtop conv. 300-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med hvy 0 5 45 50 65 21.0  
2008 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 mtns lead light 5 5 10 80 75 25.5  
2007 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med none 13 13 8 68 95 25.6  
2006 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat light light 2 10 3 85 70 23.4  
2006 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med hvy 10 10 20 60 70 24.7  
2005 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med light 10 25 12 53 66 23.2  
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2005 2dr Hardtop conv. 268-horsepower 3.5L V6
6-speed manual RWD		 flat lead none 0 0 10 90 75 24.0  
2003 2dr Hardtop conv. supercharged 192hp 2.3L I4
5-speed shiftable automatic RWD		 flat med light 0 5 16 79 72 26.2  
2001 2dr Hardtop conv. 215-horsepower 3.2L V6
5-speed shiftable automatic RWD		 flat med light 1 15 35 50 63 25.3  

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This page shows only averages. See all the Mercedes-Benz SLK fuel economy data.

BMW 2-Series vs. Mercedes-Benz SLK MPG

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the BMW 2-Series and Mercedes-Benz SLK's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all Coupes and Convertibles.
See TrueDelta's information for all BMW models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the BMW 2-Series

BMW 2-Series Real Gas Mileage: Pros
YearBody/PowertrainComment
2014 2dr Coupe turbocharged 320hp 3.0L I6
8-speed shiftable automatic RWD		 The #3 pro of this hardcore sports car, surprisingly, is fuel economy. All the major brands are taking surprising lengths to be eco-friendly. In 'Eco' mode, the 300 horsepower M235i can manage a surprising 22/33 mpg. There is a MPG bar constantly running below your speedometer, constantly challenging you to try to make it as big as possible. The car also features regenerative braking to power the car's electrical systems. see full BMW 2-Series review
 

What Our Members Are Saying about the Real Gas Mileage of the Mercedes-Benz SLK

Mercedes-Benz SLK Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 clearly AMG was not thinking gas mileage at all when they built this engine see full Mercedes-Benz SLK review