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Mercedes-Benz SLK vs. Infiniti Q50 MPG

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Chart is based on 18 fuel economy reports for the Mercedes-Benz SLK and 3 fuel economy reports for the Infiniti Q50.

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.

Infiniti Q50 MPG

Infiniti Q50 Infiniti Q50 2014 24.4 MPG Highway Percentage 70 percent Infiniti Q50 Infiniti Q50 2014 29.3 MPG Highway Percentage 86 percent Infiniti Q50 Infiniti Q50 2014 25.0 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 MPG
2014 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD
flat med light 0 20 10 70 70 24.4  
2014 4dr Sedan 302-horsepower 3.5L V6 Hybrid
7-speed shiftable automatic RWD
flat med light 5 5 5 86 75 29.3  
2014 4dr Sedan 302-horsepower 3.5L V6 Hybrid
7-speed shiftable automatic AWD
flat med light 5 15 40 40 80 25.0  

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This page shows only averages. See all the Infiniti Q50 fuel economy data.

Mercedes-Benz SLK vs. Infiniti Q50 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 Mercedes-Benz SLK and Infiniti Q50'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 Mercedes-Benz models and Infiniti models.

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
 

What Our Members Are Saying about the Real Gas Mileage of the 2001 Infiniti Q50

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