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Dodge Challenger vs. Mercedes-Benz SLK Fuel Economy (L/100km)

Chart is based on 381 fuel economy reports for the Dodge Challenger and 18 fuel economy reports for the Mercedes-Benz SLK.

Dodge Challenger L/100km

Dodge Challenger Dodge Challenger 2023 8.8 MPG Highway Percentage 92 percent Dodge Challenger Dodge Challenger 2016 10.9 MPG Highway Percentage 45 percent Dodge Challenger Dodge Challenger 2015 11.3 MPG Highway Percentage 87 percent Dodge Challenger Dodge Challenger 2014 8.7 MPG Highway Percentage 95 percent Dodge Challenger Dodge Challenger 2012 12.0 MPG Highway Percentage 75 percent Dodge Challenger Dodge Challenger 2012 11.2 MPG Highway Percentage 90 percent Dodge Challenger Dodge Challenger 2010 12.3 MPG Highway Percentage 78 percent Dodge Challenger Dodge Challenger 2010 11.3 MPG Highway Percentage 36 percent Dodge Challenger Dodge Challenger 2009 10.3 MPG Highway Percentage 57 percent Dodge Challenger Dodge Challenger 2009 15.4 MPG Highway Percentage 15 percent Dodge Challenger Dodge Challenger 2008 12.7 MPG Highway Percentage 40 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 L/100km
2023 2dr Coupe 375-horsepower 5.7L V8
6-speed manual RWD		 flat med hvy 0 8 0 92 68 8.8  
2016 2dr Coupe 305-horsepower 3.6L V6
8-speed shiftable automatic RWD		 flat med hvy 15 40 0 45 65 10.9  
2015 2dr Coupe 485-horsepower 6.4L V8
6-speed manual RWD		 flat v.lt light 0 3 10 87 65 11.3  
2014 2dr Coupe 375-horsepower 5.7L V8
6-speed manual RWD		 flat med light 1 2 2 95 70 8.7  
2012 2dr Coupe 470-horsepower 6.4L V8
6-speed manual RWD		 hills light none 15 10 1 75 68 12.0  
2012 2dr Coupe 372-horsepower 5.7L V8
5-speed shiftable automatic RWD		 flat med light 0 0 10 90 75 11.2  
2010 2dr Coupe 376-horsepower 5.7L V8
6-speed manual RWD		 flat lead none 1 10 11 78 70 12.3  
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2010 2dr Coupe 372-horsepower 5.7L V8
5-speed shiftable automatic RWD		 flat med none 7 16 42 36 68 11.3  
2009 2dr Coupe 376-horsepower 5.7L V8
6-speed manual RWD		 flat med none 31 13 0 57 65 10.3  
2009 2dr Coupe 372-horsepower 5.7L V8
5-speed shiftable automatic RWD		 flat light none 0 70 15 15 65 15.4  
2008 2dr Coupe 425-horsepower 6.1L V8
5-speed shiftable automatic RWD		 hills lead light 0 10 50 40 70 12.7  

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This page shows only averages. See all the Dodge Challenger fuel economy data.

Mercedes-Benz SLK L/100km

Mercedes-Benz SLK Mercedes-Benz SLK 2009 10.8 MPG Highway Percentage 70 percent Mercedes-Benz SLK Mercedes-Benz SLK 2009 11.2 MPG Highway Percentage 50 percent Mercedes-Benz SLK Mercedes-Benz SLK 2008 9.2 MPG Highway Percentage 80 percent Mercedes-Benz SLK Mercedes-Benz SLK 2007 9.7 MPG Highway Percentage 68 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 10.1 MPG Highway Percentage 85 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 9.6 MPG Highway Percentage 60 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 10.6 MPG Highway Percentage 53 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 9.8 MPG Highway Percentage 90 percent Mercedes-Benz SLK Mercedes-Benz SLK 2003 9.0 MPG Highway Percentage 79 percent Mercedes-Benz SLK Mercedes-Benz SLK 2001 9.3 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 L/100km
2009 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat med light 0 10 20 70 100 10.8  
2009 2dr Hardtop conv. 300-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med hvy 0 5 45 50 65 11.2  
2008 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 mtns lead light 5 5 10 80 75 9.2  
2007 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med none 13 13 8 68 95 9.7  
2006 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat light light 2 10 3 85 70 10.1  
2006 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med hvy 10 10 20 60 70 9.6  
2005 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med light 10 25 12 53 66 10.6  
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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 9.8  
2003 2dr Hardtop conv. supercharged 192hp 2.3L I4
5-speed shiftable automatic RWD		 flat med light 0 5 16 79 72 9.0  
2001 2dr Hardtop conv. 215-horsepower 3.2L V6
5-speed shiftable automatic RWD		 flat med light 1 15 35 50 63 9.3  

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

Dodge Challenger vs. Mercedes-Benz SLK Fuel Economy (L/100km)

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 Dodge Challenger and Mercedes-Benz SLK's where a car was driven. So you can get an idea of their real-world L/100km based on how and where you drive a car.

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

What Our Members Are Saying about the Real Gas Mileage of the Dodge Challenger

Dodge Challenger Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 2dr Coupe 470-horsepower 6.4L V8
6-speed manual RWD		 Better than I thought I would get out of a Huge V8. It is my Daily Driver so I do fether the pedal sometimes. If hypermiling I can get 27 to 31 highway and a combination of 23mpg total......if I can get through a tank without opening it up. see full Dodge Challenger review
Dodge Challenger Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 2dr Coupe 470-horsepower 6.4L V8
6-speed manual RWD		 I think they could have made the 4 cylender deactivation for the Manuel as well and improve gas milage. see full Dodge Challenger review
2009 2dr Coupe 376-horsepower 5.7L V8
6-speed manual RWD		 City milage is not very good and it is so hard to stay off the gas. see full Dodge Challenger 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