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Mercedes-Benz R-Class vs. Pontiac Grand Prix Fuel Economy (g/100m)

Chart is based on 37 fuel economy reports for the Mercedes-Benz R-Class and 102 fuel economy reports for the Pontiac Grand Prix.

Mercedes-Benz R-Class g/100m

Mercedes-Benz R-Class Mercedes-Benz R-Class 2010 4.2 MPG Highway Percentage 40 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2008 4.9 MPG Highway Percentage 55 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2008 5.0 MPG Highway Percentage 44 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2007 9.4 MPG Highway Percentage 45 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2007 6.3 MPG Highway Percentage 26 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2006 6.7 MPG Highway Percentage 19 percent Mercedes-Benz R-Class Mercedes-Benz R-Class 2006 5.1 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 g/100m
2010 4dr SUV turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat med hvy 10 15 35 40 75 4.2  
2008 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 hills med light 0 0 45 55 71 4.9  
2008 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat med light 2 34 21 44 74 5.0  
2007 4dr SUV turbocharged 215hp 3.0L V6 Diesel
7-speed shiftable automatic AWD		 flat light light 3 24 27 45 83 9.4  
2007 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat light none 13 23 38 26 65 6.3  
2006 4dr SUV 302-horsepower 5.0L V8
7-speed shiftable automatic AWD		 flat med none 23 40 18 19 70 6.7  
2006 4dr SUV 268-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat med light 6 22 24 48 68 5.1  

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

Pontiac Grand Prix g/100m

Pontiac Grand Prix Pontiac Grand Prix 2008 5.1 MPG Highway Percentage 21 percent Pontiac Grand Prix Pontiac Grand Prix 2008 4.9 MPG Highway Percentage 0 percent Pontiac Grand Prix Pontiac Grand Prix 2007 6.0 MPG Highway Percentage 50 percent Pontiac Grand Prix Pontiac Grand Prix 2007 4.3 MPG Highway Percentage 53 percent Pontiac Grand Prix Pontiac Grand Prix 2006 15.2 MPG Highway Percentage 33 percent Pontiac Grand Prix Pontiac Grand Prix 2006 5.5 MPG Highway Percentage 45 percent Pontiac Grand Prix Pontiac Grand Prix 2006 4.2 MPG Highway Percentage 49 percent Pontiac Grand Prix Pontiac Grand Prix 2005 3.6 MPG Highway Percentage 95 percent Pontiac Grand Prix Pontiac Grand Prix 2005 5.6 MPG Highway Percentage 25 percent Pontiac Grand Prix Pontiac Grand Prix 2005 4.3 MPG Highway Percentage 45 percent Pontiac Grand Prix Pontiac Grand Prix 2004 4.9 MPG Highway Percentage 28 percent Pontiac Grand Prix Pontiac Grand Prix 2004 5.1 MPG Highway Percentage 20 percent Pontiac Grand Prix Pontiac Grand Prix 2004 7.0 MPG Highway Percentage 70 percent Pontiac Grand Prix Pontiac Grand Prix 2003 4.5 MPG Highway Percentage 34 percent Pontiac Grand Prix Pontiac Grand Prix 2003 21.2 MPG Highway Percentage 1 percent Pontiac Grand Prix Pontiac Grand Prix 2002 4.6 MPG Highway Percentage 23 percent Pontiac Grand Prix Pontiac Grand Prix 2002 4.8 MPG Highway Percentage 3 percent Pontiac Grand Prix Pontiac Grand Prix 2002 4.7 MPG Highway Percentage 56 percent Pontiac Grand Prix Pontiac Grand Prix 2001 13.4 MPG Highway Percentage 83 percent Pontiac Grand Prix Pontiac Grand Prix 2001 3.2 MPG Highway Percentage 99 percent Pontiac Grand Prix Pontiac Grand Prix 2001 3.6 MPG Highway Percentage 95 percent Pontiac Grand Prix Pontiac Grand Prix 2000 4.1 MPG Highway Percentage 85 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
2008 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med none 7 39 32 21 61 5.1  
2008 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 hills light hvy 0 0 100 0 N/A 4.9  
2007 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 flat med none 3 37 10 50 63 6.0  
2007 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 hills light none 17 24 8 53 63 4.3  
2006 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 flat med light 3 43 23 33 100 15.2  
2006 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med light 5 22 28 45 69 5.5  
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 10 11 31 49 69 4.2  
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2005 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 hills med hvy 0 0 5 95 70 3.6  
2005 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med none 7 23 45 25 65 5.6  
2005 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 10 24 21 45 65 4.3  
2004 4dr Sedan supercharged 260hp 3.8L V6
4-speed shiftable automatic FWD		 hills med light 26 23 23 28 72 4.9  
2004 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 hills med none 0 40 40 20 65 5.1  
2004 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 3 7 20 70 77 7.0  
2003 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 19 23 25 34 60 4.5  
2003 4dr Sedan 175-horsepower 3.1L V6
4-speed automatic FWD		 flat med none 9 10 80 1 100 21.2  
2002 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 flat med light 66 8 3 23 64 4.6  
2002 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med none 2 25 70 3 75 4.8  
2002 2dr Coupe 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 0 17 28 56 65 4.7  
2001 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 flat light light 9 5 5 83 80 13.4  
2001 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat v.lt none 0 0 1 99 60 3.2  
2001 4dr Sedan 175-horsepower 3.1L V6
4-speed automatic FWD		 flat v.lt light 0 2 3 95 80 3.6  
2000 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 5 5 5 85 70 4.1  

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This page shows only averages. See all the Pontiac Grand Prix fuel economy data.

Mercedes-Benz R-Class vs. Pontiac Grand Prix 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 R-Class and Pontiac Grand Prix'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 Pontiac 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 Pontiac Grand Prix

Pontiac Grand Prix Real Gas Mileage: Pros
YearBody/PowertrainComment
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 it was listed as being better than the impalla see full Pontiac Grand Prix review
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 Good for a speedy V6 and a huge car. see full Pontiac Grand Prix review
2005 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 Thus far, I have averaged 23 and 26 mpg, both times have had roughly a 70 mile highway trip out of 200 miles. Overall, I find this to be acceptable. see full Pontiac Grand Prix review
2002 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 HORRIBLE. 12-16mpg combined with both city and driving. see full Pontiac Grand Prix review
2002 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 BEFORE the switch to ethanol-mixed fuel, my supercharged V6 averaged 22mpg, getting 19 city and a staggering 34 highway. If you do long highway miles and want more comfort than any econo-box can offer, this is the car for you! see full Pontiac Grand Prix review
Pontiac Grand Prix Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 Great V8 exhaust note and instant acceleration comes at the cost of about 19 mpg in combined driving, versus 25 with my new car. That is a 30% increase. (the new car is 600 pounds lighter though...) see full Pontiac Grand Prix review
2005 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 17-19 mpg in the city. 25 If I drive on the intersate. 30 is possible at 60mph. Most of my driving is in the city. The beautiful v8 makes it impossible to stay out of the gas, but it can run on REG fuel. see full Pontiac Grand Prix review