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Mercedes-Benz M-Class vs. Porsche Cayenne MPG

Chart is based on 47 fuel economy reports for the Mercedes-Benz M-Class and 10 fuel economy reports for the Porsche Cayenne.

Mercedes-Benz M-Class MPG

Mercedes-Benz M-Class Mercedes-Benz M-Class 2013 29.1 MPG Highway Percentage 56 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2012 29.0 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2011 24.0 MPG Highway Percentage 20 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 21.8 MPG Highway Percentage 35 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 26.6 MPG Highway Percentage 69 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2010 19.7 MPG Highway Percentage 54 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2009 24.8 MPG Highway Percentage 44 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2008 21.2 MPG Highway Percentage 15 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2008 25.3 MPG Highway Percentage 63 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2007 21.6 MPG Highway Percentage 45 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2007 20.8 MPG Highway Percentage 67 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2006 17.5 MPG Highway Percentage 25 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2006 19.6 MPG Highway Percentage 54 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2005 18.5 MPG Highway Percentage 5 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2005 15.2 MPG Highway Percentage 50 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2004 18.4 MPG Highway Percentage 40 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2003 17.5 MPG Highway Percentage 65 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2003 16.0 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 15.6 MPG Highway Percentage 44 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 16.1 MPG Highway Percentage 23 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2002 16.0 MPG Highway Percentage 25 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2000 27.6 MPG Highway Percentage 80 percent Mercedes-Benz M-Class Mercedes-Benz M-Class 2000 21.5 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 MPG
2013 4dr SUV turbocharged 240hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat light hvy 7 21 16 56 65 29.1  
2012 4dr SUV turbocharged 240hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
hills light none 0 5 15 80 64 29.0  
2011 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat light light 10 10 60 20 60 24.0  
2010 4dr SUV turbocharged 228hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
hills med light 5 10 50 35 100 21.8  
2010 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat med none 1 5 25 69 70 26.6  
2010 4dr SUV 382-horsepower 5.5L V8
7-speed shiftable automatic AWD
flat med hvy 17 15 15 54 70 19.7  
2009 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat light light 4 7 46 44 73 24.8  
2008 4dr SUV turbocharged 221hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat med none 25 30 30 15 100 21.2  
2008 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat light light 2 18 17 63 70 25.3  
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD
flat v.lt none 10 25 20 45 100 21.6  
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat light light 6 9 18 67 69 20.8  
2006 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD
flat lead hvy 25 25 25 25 75 17.5  
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
hills light light 0 0 46 54 65 19.6  
2005 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range
flat med hvy 0 47 47 5 80 18.5  
2005 4dr SUV 232-horsepower 3.7L V6
5-speed shiftable automatic AWD w/low range
flat light none 5 20 25 50 70 15.2  
2004 4dr SUV 232-horsepower 3.7L V6
5-speed shiftable automatic AWD w/low range
flat light none 0 0 60 40 67 18.4  
2003 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range
flat med hvy 5 5 25 65 80 17.5  
2003 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range
mtns light light 0 0 20 80 65 16.0  
2002 4dr SUV 342-horsepower 5.4L V8
5-speed shiftable automatic AWD w/low range
flat med none 1 48 8 44 90 15.6  
2002 4dr SUV 288-horsepower 5.0L V8
5-speed shiftable automatic AWD w/low range
flat med light 8 50 20 23 88 16.1  
2002 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range
flat med hvy 15 25 35 25 70 16.0  
2000 4dr SUV 268-horsepower 4.3L V8
5-speed shiftable automatic AWD w/low range
flat light none 0 0 20 80 100 27.6  
2000 4dr SUV 215-horsepower 3.2L V6
5-speed shiftable automatic AWD w/low range
flat med none 0 0 10 90 65 21.5  

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Porsche Cayenne MPG

Porsche Cayenne Porsche Cayenne 2010 19.0 MPG Highway Percentage 50 percent Porsche Cayenne Porsche Cayenne 2008 18.0 MPG Highway Percentage 35 percent Porsche Cayenne Porsche Cayenne 2006 15.8 MPG Highway Percentage 16 percent Porsche Cayenne Porsche Cayenne 2005 17.5 MPG Highway Percentage 75 percent Porsche Cayenne Porsche Cayenne 2004 16.2 MPG Highway Percentage 75 percent Porsche Cayenne Porsche Cayenne 2004 16.8 MPG Highway Percentage 26 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
2010 4dr SUV 290-horsepower 3.6L V6
6-speed shiftable automatic AWD w/low range
flat lead hvy 15 15 20 50 75 19.0  
2008 4dr SUV 385-horsepower 4.8L V8
6-speed shiftable automatic AWD w/low range
hills med light 10 20 35 35 70 18.0  
2006 4dr SUV 340-horsepower 4.5L V8
6-speed shiftable automatic AWD w/low range
flat med none 27 34 23 16 70 15.8  
2005 4dr SUV 340-horsepower 4.5L V8
6-speed shiftable automatic AWD w/low range
flat med hvy 0 25 0 75 65 17.5  
2004 4dr SUV turbocharged 450hp 4.5L V8
6-speed shiftable automatic AWD w/low range
flat med hvy 0 13 13 75 60 16.2  
2004 4dr SUV 340-horsepower 4.5L V8
6-speed shiftable automatic AWD w/low range
flat med hvy 24 24 26 26 75 16.8  

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This page shows only averages. See all the Porsche Cayenne fuel economy data.

Mercedes-Benz M-Class vs. Porsche Cayenne 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 M-Class and Porsche Cayenne'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 SUVs
See TrueDelta's information for all Mercedes-Benz models and Porsche 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 Porsche Cayenne

Porsche Cayenne Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr SUV turbocharged 240hp 3.0L V6 Diesel
8-speed shiftable automatic AWD
33 mpg city and 35 mpg highway with cruise set at 73 mph see full Porsche Cayenne review
Porsche Cayenne Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr SUV 290-horsepower 3.6L V6
6-speed shiftable automatic AWD w/low range
Fuel economy is not as good as it could be. see full Porsche Cayenne review
2008 4dr SUV turbocharged 500hp 4.8L V8
6-speed shiftable automatic AWD w/low range
Not so good on Turbo see full Porsche Cayenne review
2004 4dr SUV turbocharged 450hp 4.5L V8
6-speed shiftable automatic AWD w/low range
Traditional suv type mileage. see full Porsche Cayenne review