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Subaru WRX vs. Mercedes-Benz SLK MPG

Chart is based on 36 fuel economy reports for the Subaru WRX and 18 fuel economy reports for the Mercedes-Benz SLK.

Subaru WRX MPG

Subaru WRX Subaru WRX 2018 23.6 MPG Highway Percentage 19 percent Subaru WRX Subaru WRX 2017 22.6 MPG Highway Percentage 6 percent Subaru WRX Subaru WRX 2016 21.5 MPG Highway Percentage 38 percent Subaru WRX Subaru WRX 2016 23.6 MPG Highway Percentage 18 percent Subaru WRX Subaru WRX 2015 30.5 MPG Highway Percentage 85 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
2018 4dr Sedan turbocharged 268hp 2.0L H4
6-speed manual AWD		 flat med none 0 0 81 19 60 23.6  
2017 4dr Sedan turbocharged 305hp 2.5L H4
6-speed manual AWD		 hills med light 25 12 58 6 61 22.6  
2016 4dr Sedan turbocharged 305hp 2.5L H4
6-speed manual AWD		 hills med light 3 25 35 38 60 21.5  
2016 4dr Sedan turbocharged 268hp 2.0L H4
8-speed shiftable CVT AWD		 hills med none 8 10 65 18 63 23.6  
2015 4dr Sedan turbocharged 268hp 2.0L H4
6-speed manual AWD		 flat med light 2 3 11 85 63 30.5  

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This page shows only averages. See all the Subaru WRX 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.

Subaru WRX 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 Subaru WRX 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.

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See TrueDelta's information for all Subaru models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the Subaru WRX

Subaru WRX Real Gas Mileage: Pros
YearBody/PowertrainComment
2015 4dr Sedan turbocharged 268hp 2.0L H4
6-speed manual AWD		 3 out of 5: I average about 24 MPG in 50/50 mixed city/hwy. About 18 MPG in stricly city. About 28 MPG in strictly hwy. Have even seen 30-32 MPG if just cruising at hwy speeds of 65-75 MPH. see full Subaru WRX 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