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Infiniti Q50 vs. Mercedes-Benz S-Class MPG

Chart is based on 3 fuel economy reports for the Infiniti Q50 and 22 fuel economy reports for the Mercedes-Benz S-Class.

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 S-Class MPG

Mercedes-Benz S-Class Mercedes-Benz S-Class 2007 21.8 MPG Highway Percentage 45 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2007 25.0 MPG Highway Percentage 70 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 24.7 MPG Highway Percentage 98 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 23.5 MPG Highway Percentage 80 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 23.0 MPG Highway Percentage 85 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2004 19.9 MPG Highway Percentage 47 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2004 24.0 MPG Highway Percentage 80 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2003 18.1 MPG Highway Percentage 68 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2003 17.6 MPG Highway Percentage 71 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2002 19.5 MPG Highway Percentage 29 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2001 11.7 MPG Highway Percentage 0 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2000 24.0 MPG Highway Percentage 82 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
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 flat med none 5 15 35 45 62 21.8  
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic AWD		 flat light none 10 10 10 70 65 25.0  
2006 4dr Sedan, ext. 302-horsepower 5.0L V8
7-speed shiftable automatic RWD		 flat med hvy 1 1 0 98 78 24.7  
2006 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic AWD		 flat light none 0 0 20 80 65 23.5  
2006 4dr Sedan, ext. 275-horsepower 4.3L V8
7-speed shiftable automatic RWD		 flat light hvy 0 15 0 85 60 23.0  
2004 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic AWD		 flat med none 1 45 8 47 80 19.9  
2004 4dr Sedan, ext. 275-horsepower 4.3L V8
7-speed shiftable automatic RWD		 flat med hvy 0 2 18 80 75 24.0  
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2003 4dr Sedan, ext. turbocharged 493hp 5.5L V12
5-speed shiftable automatic RWD		 flat light light 7 11 15 68 108 18.1  
2003 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat med hvy 6 12 12 71 70 17.6  
2002 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat med hvy 13 6 54 29 68 19.5  
2001 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic RWD		 flat med none 20 80 0 0 0 11.7  
2000 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat v.lt light 0 7 11 82 62 24.0  

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

Infiniti Q50 vs. Mercedes-Benz S-Class 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 Infiniti Q50 and Mercedes-Benz S-Class'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 Sedans
See TrueDelta's information for all Infiniti models and Mercedes-Benz models.

TrueDelta Reviews the Real Gas Mileage of the Infiniti Q50

Infiniti Q50 Real Gas Mileage: Cons
YearComment
With EPA ratings of 19 mpg city and 27 mpg highway, the Q50 AWD falls short of the BMW's scores (21/31). But it's on par (or better) compared to the others. If fuel economy is a priority then the Q50 Hybrid is the way to go, with EPA ratings of 29/36 with rear-wheel-drive and 28/34 with all-wheel-drive. Opt for the S variant and these numbers take a bit of a hit, to 28/34 with RWD and 27/31 with AWD. BMW also offers a hybrid, but not with AWD, and it's not as fuel efficient (25/33). The Q50S Hybrid costs another $1,850. Quite reasonable, as it's not only more efficient, but also torquier and quicker. More of an issue: it weighs more, which likely impacts handling, and the battery pack reduces trunk volume to a class-trailing 9.4 cubic feet. see full Infiniti Q50 review
 

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

Mercedes-Benz S-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 Since my driving is about 50-50 city and highway, I average about 20-21 mpg, using premium fuel. All highway is 29-30mpg and all city is 14-15mpg. see full Mercedes-Benz S-Class review
2007 0 While on long trips at 70-80mph I average 32mpg around town it never goes better than 24mpg. Easy on the pedal sure shows results but fully loaded the thing shifts like a two door sports. see full Mercedes-Benz S-Class review
Mercedes-Benz S-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr Sedan turbocharged 232hp 3.0L V6 Diesel
7-speed shiftable automatic RWD		 Very, very expensive see full Mercedes-Benz S-Class review
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 Driving it in a lot of stop and go traffic it drinks gas. see full Mercedes-Benz S-Class review
2007 0 Fuel cost are a killer and servicing requires finding an allternative to the Mercedes Garage see full Mercedes-Benz S-Class review
2001 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic RWD		 20l/100km but its still worth it see full Mercedes-Benz S-Class review