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Audi A5 / S5 / RS5 vs. Mercedes-Benz S-Class MPG

Chart is based on 141 fuel economy reports for the Audi A5 / S5 / RS5 and 22 fuel economy reports for the Mercedes-Benz S-Class.

Audi A5 / S5 / RS5 MPG

Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2013 27.4 MPG Highway Percentage 66 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2012 24.4 MPG Highway Percentage 29 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 15.6 MPG Highway Percentage 30 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 19.4 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 25.5 MPG Highway Percentage 50 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 25.2 MPG Highway Percentage 33 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 21.4 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 23.1 MPG Highway Percentage 55 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 20.3 MPG Highway Percentage 62 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 26.5 MPG Highway Percentage 23 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 47.0 MPG Highway Percentage 100 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 26.6 MPG Highway Percentage 43 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 15.9 MPG Highway Percentage 24 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 24.5 MPG Highway Percentage 32 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
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 flat med light 0 0 34 66 75 27.4  
2012 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat med light 5 16 50 29 66 24.4  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 10 30 30 30 75 15.6  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 hills light light 3 8 20 70 73 19.4  
2011 2dr Convertible turbocharged 211hp 2.0L I4
8-speed shiftable CVT FWD		 flat light none 20 10 20 50 70 25.5  
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat lead none 9 11 47 33 72 25.2  
2010 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med hvy 10 10 10 70 120 21.4  
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2010 2dr Convertible supercharged 333hp 3.0L V6
7-speed automated manual AWD		 hills med none 0 5 40 55 88 23.1  
2009 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat med none 0 17 22 62 67 20.3  
2009 2dr Coupe 265-horsepower 3.2L V6
6-speed manual AWD		 flat med light 10 28 40 23 68 26.5  
2008 2dr Coupe turbocharged 240hp 3.0L V6 Diesel
6-speed manual AWD		 flat light light 0 0 0 100 100 47.0  
2008 2dr Coupe turbocharged 170hp 1.8L I4
6-speed manual FWD		 flat med light 13 18 28 43 160 26.6  
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat lead none 1 14 60 24 73 15.9  
2008 2dr Coupe 265-horsepower 3.2L V6
6-speed shiftable automatic AWD		 flat med hvy 20 24 24 32 80 24.5  

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This page shows only averages. See all the Audi A5 / S5 / RS5 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.

Audi A5 / S5 / RS5 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 Audi A5 / S5 / RS5 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 Coupes, Convertibles, and Hatchbacks.
See TrueDelta's information for all Audi models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the Audi A5 / S5 / RS5

Audi A5 / S5 / RS5 Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 Mileage seems to have leveled out at about 27 mpg with a 60/40 mix of highway and suburban driving. On longer trips, it has been as high as 30 mpg while driving a steady 75 mph. see full Audi A5 / S5 / RS5 review
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 Averaging 9L/100KM, without feeling too conservative. see full Audi A5 / S5 / RS5 review
Audi A5 / S5 / RS5 Real Gas Mileage: Cons
YearBody/PowertrainComment
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 I knew what gas mileage the S5 got long before I stepped onto the dealer lot. Still, I get 24 mpg on a full highway run. see full Audi A5 / S5 / RS5 review
2009 2dr Coupe turbocharged 170hp 2.0L I4 Diesel
6-speed manual AWD		 Fuel economy is fair when going for a long ride, the car is AWD and heavy. I did however expect a somewhat lower fuel consumption when driving short-distance. see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 It is not great, and if you have fun with the car, you will get less than 15MPG see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 drinks too fast when driving is more aggressive see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 Thirsty V8 coupled with a car that was born to be driven hard equals mid-teen MPG in mostly non-highway driving. see full Audi A5 / S5 / RS5 review
 

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