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Mercedes-Benz M-Class vs. Audi A5 / S5 / RS5 Fuel Economy (g/100m)

Chart is based on 47 fuel economy reports for the Mercedes-Benz M-Class and 141 fuel economy reports for the Audi A5 / S5 / RS5.

Mercedes-Benz M-Class g/100m

Mercedes-Benz M-Class Mercedes-Benz M-Class 2013 3.4 MPG Highway Percentage 56 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2012 3.5 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2011 4.2 MPG Highway Percentage 20 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 25.4 MPG Highway Percentage 35 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 3.8 MPG Highway Percentage 69 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 5.1 MPG Highway Percentage 54 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2009 4.0 MPG Highway Percentage 44 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2008 26.1 MPG Highway Percentage 15 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2008 6.6 MPG Highway Percentage 63 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2007 25.6 MPG Highway Percentage 45 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2007 4.9 MPG Highway Percentage 67 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2006 5.7 MPG Highway Percentage 25 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2006 5.1 MPG Highway Percentage 54 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2005 5.4 MPG Highway Percentage 5 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2005 6.6 MPG Highway Percentage 50 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2004 5.5 MPG Highway Percentage 40 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2003 5.7 MPG Highway Percentage 65 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2003 6.3 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 19.5 MPG Highway Percentage 44 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 20.7 MPG Highway Percentage 23 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 6.3 MPG Highway Percentage 25 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2000 20.1 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2000 4.7 MPG Highway Percentage 90 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 g/100m
2013 4dr SUV turbocharged 240hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light hvy 7 21 16 56 65 3.4  
2012 4dr SUV turbocharged 240hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 hills light none 0 5 15 80 64 3.5  
2011 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light light 10 10 60 20 60 4.2  
2010 4dr SUV turbocharged 228hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 hills med light 5 10 50 35 100 25.4  
2010 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat med none 1 5 25 69 70 3.8  
2010 4dr SUV 382-horsepower 5.5L V8
7-speed shiftable automatic AWD		 flat med hvy 17 15 15 54 70 5.1  
2009 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light light 4 7 46 44 73 4.0  
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2008 4dr SUV turbocharged 221hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat med none 25 30 30 15 100 26.1  
2008 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light light 2 18 17 63 70 6.6  
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat v.lt none 10 25 20 45 100 25.6  
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat light light 6 9 18 67 69 4.9  
2006 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 flat lead hvy 25 25 25 25 75 5.7  
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 hills light light 0 0 46 54 65 5.1  
2005 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range		 flat med hvy 0 47 47 5 80 5.4  
2005 4dr SUV 232-horsepower 3.7L V6
5-speed shiftable automatic AWD w/low range		 flat light none 5 20 25 50 70 6.6  
2004 4dr SUV 232-horsepower 3.7L V6
5-speed shiftable automatic AWD w/low range		 flat light none 0 0 60 40 67 5.5  
2003 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range		 flat med hvy 5 5 25 65 80 5.7  
2003 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range		 mtns light light 0 0 20 80 65 6.3  
2002 4dr SUV 342-horsepower 5.4L V8
5-speed shiftable automatic AWD w/low range		 flat med none 1 48 8 44 90 19.5  
2002 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range		 flat med light 8 50 20 23 88 20.7  
2002 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range		 flat med hvy 15 25 35 25 70 6.3  
2000 4dr SUV 268-horsepower 4.3L V8
5-speed shiftable automatic AWD w/low range		 flat light none 0 0 20 80 100 20.1  
2000 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range		 flat med none 0 0 10 90 65 4.7  

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

Audi A5 / S5 / RS5 g/100m

Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2013 3.7 MPG Highway Percentage 66 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2012 4.1 MPG Highway Percentage 29 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 6.4 MPG Highway Percentage 30 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 5.2 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 3.9 MPG Highway Percentage 50 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 4.3 MPG Highway Percentage 33 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 25.9 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 13.1 MPG Highway Percentage 55 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 5.0 MPG Highway Percentage 62 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 3.8 MPG Highway Percentage 23 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 11.8 MPG Highway Percentage 100 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 20.9 MPG Highway Percentage 43 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 6.8 MPG Highway Percentage 24 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 4.1 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 g/100m
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 flat med light 0 0 34 66 75 3.7  
2012 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat med light 5 16 50 29 66 4.1  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 10 30 30 30 75 6.4  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 hills light light 3 8 20 70 73 5.2  
2011 2dr Convertible turbocharged 211hp 2.0L I4
8-speed shiftable CVT FWD		 flat light none 20 10 20 50 70 3.9  
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat lead none 9 11 47 33 72 4.3  
2010 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med hvy 10 10 10 70 120 25.9  
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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 13.1  
2009 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat med none 0 17 22 62 67 5.0  
2009 2dr Coupe 265-horsepower 3.2L V6
6-speed manual AWD		 flat med light 10 28 40 23 68 3.8  
2008 2dr Coupe turbocharged 240hp 3.0L V6 Diesel
6-speed manual AWD		 flat light light 0 0 0 100 100 11.8  
2008 2dr Coupe turbocharged 170hp 1.8L I4
6-speed manual FWD		 flat med light 13 18 28 43 160 20.9  
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat lead none 1 14 60 24 73 6.8  
2008 2dr Coupe 265-horsepower 3.2L V6
6-speed shiftable automatic AWD		 flat med hvy 20 24 24 32 80 4.1  

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

Mercedes-Benz M-Class vs. Audi A5 / S5 / RS5 Fuel Economy (g/100m)

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 M-Class and Audi A5 / S5 / RS5's where a car was driven. So you can get an idea of their real-world g/100m based on how and where you drive a car.

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

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

Mercedes-Benz M-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr SUV turbocharged 240hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 Upper 20's on highway and mid-20's in suburbia from a vehicle that weighs 5K lbs. see full Mercedes-Benz M-Class review
2009 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 Other luxury cars/SUVs require premium gas. Diesel could be same or even cheaper than regular gas and with immense torque and a somewhat light foot I get almost 25Mpg see full Mercedes-Benz M-Class review
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 5000 lbs vehicle. Gets 32 mpg on highway up to 75 mph, faster than that mpg drops. 23 to 24 mpg around town see full Mercedes-Benz M-Class review
Mercedes-Benz M-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 Have a V8, so I should have expected, but mpg is averaging about 16 around town. With the current gas prices, I dread going to the pump. $90 to fill up the huge tank. see full Mercedes-Benz M-Class review
 

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