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Pontiac Grand Prix vs. Porsche 911 Fuel Economy (L/100km)

Chart is based on 102 fuel economy reports for the Pontiac Grand Prix and 56 fuel economy reports for the Porsche 911.

Pontiac Grand Prix L/100km

Pontiac Grand Prix Pontiac Grand Prix 2008 12.0 MPG Highway Percentage 21 percent Pontiac Grand Prix Pontiac Grand Prix 2008 11.6 MPG Highway Percentage 0 percent Pontiac Grand Prix Pontiac Grand Prix 2007 14.2 MPG Highway Percentage 50 percent Pontiac Grand Prix Pontiac Grand Prix 2007 10.0 MPG Highway Percentage 53 percent Pontiac Grand Prix Pontiac Grand Prix 2006 11.8 MPG Highway Percentage 33 percent Pontiac Grand Prix Pontiac Grand Prix 2006 13.0 MPG Highway Percentage 45 percent Pontiac Grand Prix Pontiac Grand Prix 2006 9.8 MPG Highway Percentage 49 percent Pontiac Grand Prix Pontiac Grand Prix 2005 8.4 MPG Highway Percentage 95 percent Pontiac Grand Prix Pontiac Grand Prix 2005 13.2 MPG Highway Percentage 25 percent Pontiac Grand Prix Pontiac Grand Prix 2005 10.0 MPG Highway Percentage 45 percent Pontiac Grand Prix Pontiac Grand Prix 2004 11.5 MPG Highway Percentage 28 percent Pontiac Grand Prix Pontiac Grand Prix 2004 12.0 MPG Highway Percentage 20 percent Pontiac Grand Prix Pontiac Grand Prix 2004 8.6 MPG Highway Percentage 70 percent Pontiac Grand Prix Pontiac Grand Prix 2003 10.7 MPG Highway Percentage 34 percent Pontiac Grand Prix Pontiac Grand Prix 2003 9.0 MPG Highway Percentage 1 percent Pontiac Grand Prix Pontiac Grand Prix 2002 10.9 MPG Highway Percentage 23 percent Pontiac Grand Prix Pontiac Grand Prix 2002 11.3 MPG Highway Percentage 3 percent Pontiac Grand Prix Pontiac Grand Prix 2002 11.0 MPG Highway Percentage 56 percent Pontiac Grand Prix Pontiac Grand Prix 2001 9.7 MPG Highway Percentage 83 percent Pontiac Grand Prix Pontiac Grand Prix 2001 7.6 MPG Highway Percentage 99 percent Pontiac Grand Prix Pontiac Grand Prix 2001 8.4 MPG Highway Percentage 95 percent Pontiac Grand Prix Pontiac Grand Prix 2000 9.6 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 L/100km
2008 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med none 7 39 32 21 61 12.0  
2008 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 hills light hvy 0 0 100 0 N/A 11.6  
2007 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 flat med none 3 37 10 50 63 14.2  
2007 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 hills light none 17 24 8 53 63 10.0  
2006 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 flat med light 3 43 23 33 100 11.8  
2006 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med light 5 22 28 45 69 13.0  
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 10 11 31 49 69 9.8  
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2005 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 hills med hvy 0 0 5 95 70 8.4  
2005 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 flat med none 7 23 45 25 65 13.2  
2005 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 10 24 21 45 65 10.0  
2004 4dr Sedan supercharged 260hp 3.8L V6
4-speed shiftable automatic FWD		 hills med light 26 23 23 28 72 11.5  
2004 4dr Sedan supercharged 260hp 3.8L V6
4-speed automatic FWD		 hills med none 0 40 40 20 65 12.0  
2004 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 3 7 20 70 77 8.6  
2003 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 19 23 25 34 60 10.7  
2003 4dr Sedan 175-horsepower 3.1L V6
4-speed automatic FWD		 flat med none 9 10 80 1 100 9.0  
2002 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 flat med light 66 8 3 23 64 10.9  
2002 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med none 2 25 70 3 75 11.3  
2002 2dr Coupe 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 0 17 28 56 65 11.0  
2001 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 flat light light 9 5 5 83 80 9.7  
2001 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat v.lt none 0 0 1 99 60 7.6  
2001 4dr Sedan 175-horsepower 3.1L V6
4-speed automatic FWD		 flat v.lt light 0 2 3 95 80 8.4  
2000 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 5 5 5 85 70 9.6  

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

Porsche 911 L/100km

Porsche 911 Porsche 911 2009 12.4 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2009 11.1 MPG Highway Percentage 78 percent Porsche 911 Porsche 911 2009 8.7 MPG Highway Percentage 90 percent Porsche 911 Porsche 911 2009 10.1 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2009 11.9 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2008 11.8 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 10.1 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2007 10.7 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 9.9 MPG Highway Percentage 85 percent Porsche 911 Porsche 911 2006 13.1 MPG Highway Percentage 34 percent Porsche 911 Porsche 911 2006 11.0 MPG Highway Percentage 80 percent Porsche 911 Porsche 911 2006 13.1 MPG Highway Percentage 35 percent Porsche 911 Porsche 911 2006 11.9 MPG Highway Percentage 66 percent Porsche 911 Porsche 911 2005 11.4 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2005 11.4 MPG Highway Percentage 23 percent Porsche 911 Porsche 911 2005 12.3 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2004 13.1 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2003 13.1 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2002 18.1 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2002 11.8 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2002 10.5 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2002 12.0 MPG Highway Percentage 10 percent Porsche 911 Porsche 911 2001 11.8 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2001 11.2 MPG Highway Percentage 20 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 L/100km
2009 2dr Coupe 385-horsepower 3.8L H6
7-speed automated manual RWD		 flat med hvy 2 38 30 30 80 12.4  
2009 2dr Coupe 385-horsepower 3.8L H6
6-speed manual RWD		 flat lead light 1 1 20 78 75 11.1  
2009 2dr Coupe 345-horsepower 3.6L H6
7-speed automated manual RWD		 flat light none 0 10 0 90 75 8.7  
2009 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 5 20 50 25 70 10.1  
2009 2dr Convertible 385-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 0 50 50 75 11.9  
2008 2dr Coupe 355-horsepower 3.8L H6
5-speed shiftable automatic RWD		 flat med hvy 10 50 0 40 75 11.8  
2007 2dr Coupe turbocharged 480hp 3.6L H6
6-speed manual AWD		 mtns lead hvy 5 25 40 30 70 10.1  
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2007 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 30 30 40 70 10.7  
2007 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat lead hvy 5 0 10 85 75 9.9  
2006 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 5 32 29 34 65 13.1  
2006 2dr Coupe 325-horsepower 3.6L H6
6-speed manual RWD		 flat med hvy 10 0 10 80 60 11.0  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 5 60 35 75 13.1  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual AWD		 flat med none 5 9 20 66 76 11.9  
2005 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 hills lead light 0 10 50 40 85 11.4  
2005 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat med light 7 13 57 23 60 11.4  
2005 2dr Convertible 325-horsepower 3.6L H6
6-speed manual RWD		 flat med light 0 10 20 70 60 12.3  
2004 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat med none 5 40 30 25 70 13.1  
2003 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 mtns med light 2 3 45 50 90 13.1  
2002 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 flat med none 5 15 10 70 60 18.1  
2002 2dr Coupe turbocharged 450hp 3.6L H6
5-speed shiftable automatic AWD		 flat med hvy 35 35 0 30 70 11.8  
2002 2dr Coupe 320-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 10 20 30 40 65 10.5  
2002 2dr Convertible 320-horsepower 3.6L H6
6-speed manual AWD		 hills med none 0 0 90 10 80 12.0  
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 flat light light 0 5 70 25 80 11.8  
2001 2dr Coupe 300-horsepower 3.4L H6
6-speed manual RWD		 flat med light 5 15 60 20 60 11.2  

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This page shows only averages. See all the Porsche 911 fuel economy data.

Pontiac Grand Prix vs. Porsche 911 Fuel Economy (L/100km)

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 Pontiac Grand Prix and Porsche 911's where a car was driven. So you can get an idea of their real-world L/100km based on how and where you drive a car.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Pontiac models and Porsche models.

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
 

What Our Members Are Saying about the Real Gas Mileage of the Porsche 911

Porsche 911 Real Gas Mileage: Cons
YearBody/PowertrainComment
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 20mpg avg isnt the best see full Porsche 911 review