MENU
1 0 3 4 3 4

We are 103,000+ car owners sharing real-world car information.

Join Us

Mercedes-Benz R-Class vs. Mazda CX-7 MPG

Chart is based on 37 fuel economy reports for the Mercedes-Benz R-Class and 98 fuel economy reports for the Mazda CX-7.

Mercedes-Benz R-Class MPG

Mercedes-Benz R-Class Mercedes-Benz R-Class 2010 23.7 MPG Highway Percentage 40 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2008 20.8 MPG Highway Percentage 55 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2008 20.1 MPG Highway Percentage 44 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2007 25.0 MPG Highway Percentage 45 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2007 16.4 MPG Highway Percentage 26 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2006 15.2 MPG Highway Percentage 19 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2006 20.0 MPG Highway Percentage 48 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 turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat med hvy 10 15 35 40 75 23.7  
2008 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 hills med light 0 0 45 55 71 20.8  
2008 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat med light 2 34 21 44 74 20.1  
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light light 3 24 27 45 83 25.0  
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat light none 13 23 38 26 65 16.4  
2006 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 flat med none 23 40 18 19 70 15.2  
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat med light 6 22 24 48 68 20.0  

Return to top

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

Mazda CX-7 MPG

Mazda CX-7 Mazda CX-7 2011 15.5 MPG Highway Percentage 13 percent Mazda CX-7 Mazda CX-7 2011 23.5 MPG Highway Percentage 50 percent Mazda CX-7 Mazda CX-7 2010 19.3 MPG Highway Percentage 50 percent Mazda CX-7 Mazda CX-7 2010 27.1 MPG Highway Percentage 45 percent Mazda CX-7 Mazda CX-7 2009 22.8 MPG Highway Percentage 45 percent Mazda CX-7 Mazda CX-7 2009 17.3 MPG Highway Percentage 38 percent Mazda CX-7 Mazda CX-7 2008 19.8 MPG Highway Percentage 31 percent Mazda CX-7 Mazda CX-7 2008 16.6 MPG Highway Percentage 21 percent Mazda CX-7 Mazda CX-7 2007 20.5 MPG Highway Percentage 42 percent Mazda CX-7 Mazda CX-7 2007 18.5 MPG Highway Percentage 43 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
2011 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 hills light none 10 43 33 13 110 15.5  
2011 4dr SUV 161-horsepower 2.5L I4
5-speed shiftable automatic FWD		 hills med none 0 15 35 50 75 23.5  
2010 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 hills light light 0 3 48 50 83 19.3  
2010 4dr SUV 161-horsepower 2.5L I4
5-speed shiftable automatic FWD		 flat med light 3 5 48 45 78 27.1  
2009 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 flat light light 5 7 43 45 65 22.8  
2009 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 flat med light 5 50 8 38 110 17.3  
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 flat light none 8 15 46 31 82 19.8  
Looking for a warranty? Get a quote.
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 flat med light 22 21 36 21 85 16.6  
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 flat light light 12 24 23 42 68 20.5  
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 flat med light 13 17 27 43 67 18.5  

Return to top

This page shows only averages. See all the Mazda CX-7 fuel economy data.

Mercedes-Benz R-Class vs. Mazda CX-7 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 R-Class and Mazda CX-7'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 Mazda models.

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

Mercedes-Benz R-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 Excellent. We average 27 on the highway travelling at 70+mph see full Mercedes-Benz R-Class review
2009 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 Pleasantly surprised by first tankful. 16.2 mpg in the city. Mostly used "comfort" setting which starts out in 2nd gear and shifts early. With this nonaggressive profile, city driving economy is improved. Premium gives better gas mileage than regular (about 5% on comparable tankfuls). On Comfort setting, no difference in performance is noted. see full Mercedes-Benz R-Class review
2008 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 It easily gets to 20 mpg on highway. About 18 on mixed driving see full Mercedes-Benz R-Class review
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 Excellent fuel economy with the diesel, especially when driven gently. Also amazing power at the same time see full Mercedes-Benz R-Class review
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 15mpg city....25 mpg highway....combined is around 17-18 mpg. Not bad considering how heavy this car is. Of course i am very light to the pedal trying to keep my mpg high. Gas is too expensive nowadays so if i don't need to be fast, i am keeping it steady. see full Mercedes-Benz R-Class review
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 Much better than expected for a very large and long vehicle. Close to 25MPG on longer trips. see full Mercedes-Benz R-Class review
Mercedes-Benz R-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 15 mpg average. Not good see full Mercedes-Benz R-Class review
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 Pretty poor for a 3.5L. see full Mercedes-Benz R-Class review
2007 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 F-E is poor because of the weight to power ratio. The vehicle is heavy. With the available power, it is easy to drive faster and to maneuver through slower traffic. Frequent acceleration results in lower gas mileage. see full Mercedes-Benz R-Class review
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 I would probably choose a diesel next time for efficiency reasons - but the additional premium fuel required in the V6 is negligible once the car is paid for....soon now. Very lively engine too. I foresee a hybrid R class type vehicle after 2011... see full Mercedes-Benz R-Class review
2006 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 only 17 mpg highway see full Mercedes-Benz R-Class review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda CX-7

Mazda CX-7 Real Gas Mileage: Pros
YearBody/PowertrainComment
2011 4dr SUV 161-horsepower 2.5L I4
5-speed shiftable automatic FWD		 Traded in an F-150. CX-7 is not great but much better than a pick-up. Avg 22-28 mpg. see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 reasonable see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 bad fuel economy, I guess thats why 2006-2008 models do have a trip computer but the trip computer was not able. 2009 to present all have same trip computer that provides MPG,distance to empty and somewhat of an improved gas mileage. see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 Plenty of performance when needed yet 23 mpg on highway see full Mazda CX-7 review
Mazda CX-7 Real Gas Mileage: Cons
YearBody/PowertrainComment
2011 4dr SUV 161-horsepower 2.5L I4
5-speed shiftable automatic FWD		 Again adequate but could be better. see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 Low compared to other crossovers, due to turbo. HOwever, actual results have been higher than expected - 22/highway. (owner 8 months) see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic FWD		 Gas milage could be better. 19/22. see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 With european fuel prices you can drain your wallet refuelling this car. However when you compare with other having 260 HP it is still not so bad see full Mazda CX-7 review
2008 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 My Toyota Rav4 fuel economy was much better. Sometimes I have regrets getting 16MPG see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 The consumption is a bit to high but if you want power you must make some compromises. see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 Fuel economy not as good as many competitors in this class, combined with premium fuel requirements. see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 It is smaller yet gets the same gas mileage as the much larger and heavier Q7. see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 Averaged 15 MPG in the city. I would have expected closer to 20 MPG out of this vehicle. see full Mazda CX-7 review
2007 4dr SUV turbocharged 244hp 2.3L I4
6-speed shiftable automatic AWD		 Premium fuel, gas mileage not as good for a smaller engine. see full Mazda CX-7 review