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Porsche Boxster vs. Pontiac G5 MPG

Chart is based on 101 fuel economy reports for the Porsche Boxster and 89 fuel economy reports for the Pontiac G5.

Porsche Boxster MPG

Porsche Boxster Porsche Boxster 2013 20.7 MPG Highway Percentage 80 percent Porsche Boxster Porsche Boxster 2011 16.0 MPG Highway Percentage 50 percent Porsche Boxster Porsche Boxster 2010 20.8 MPG Highway Percentage 38 percent Porsche Boxster Porsche Boxster 2010 24.2 MPG Highway Percentage 75 percent Porsche Boxster Porsche Boxster 2008 21.5 MPG Highway Percentage 27 percent Porsche Boxster Porsche Boxster 2008 21.8 MPG Highway Percentage 3 percent Porsche Boxster Porsche Boxster 2007 25.8 MPG Highway Percentage 80 percent Porsche Boxster Porsche Boxster 2007 16.0 MPG Highway Percentage 4 percent Porsche Boxster Porsche Boxster 2007 26.1 MPG Highway Percentage 55 percent Porsche Boxster Porsche Boxster 2006 21.4 MPG Highway Percentage 63 percent Porsche Boxster Porsche Boxster 2005 22.4 MPG Highway Percentage 48 percent Porsche Boxster Porsche Boxster 2005 16.4 MPG Highway Percentage 75 percent Porsche Boxster Porsche Boxster 2005 25.9 MPG Highway Percentage 70 percent Porsche Boxster Porsche Boxster 2005 25.6 MPG Highway Percentage 50 percent Porsche Boxster Porsche Boxster 2005 24.2 MPG Highway Percentage 43 percent Porsche Boxster Porsche Boxster 2004 20.7 MPG Highway Percentage 48 percent Porsche Boxster Porsche Boxster 2004 25.9 MPG Highway Percentage 80 percent Porsche Boxster Porsche Boxster 2004 21.0 MPG Highway Percentage 25 percent Porsche Boxster Porsche Boxster 2004 25.3 MPG Highway Percentage 47 percent Porsche Boxster Porsche Boxster 2003 21.9 MPG Highway Percentage 38 percent Porsche Boxster Porsche Boxster 2003 26.0 MPG Highway Percentage 50 percent Porsche Boxster Porsche Boxster 2003 28.0 MPG Highway Percentage 50 percent Porsche Boxster Porsche Boxster 2002 23.7 MPG Highway Percentage 47 percent Porsche Boxster Porsche Boxster 2002 29.4 MPG Highway Percentage 40 percent Porsche Boxster Porsche Boxster 2002 18.0 MPG Highway Percentage 51 percent Porsche Boxster Porsche Boxster 2002 23.4 MPG Highway Percentage 64 percent Porsche Boxster Porsche Boxster 2001 21.7 MPG Highway Percentage 52 percent Porsche Boxster Porsche Boxster 2001 22.9 MPG Highway Percentage 35 percent Porsche Boxster Porsche Boxster 2000 22.4 MPG Highway Percentage 55 percent Porsche Boxster Porsche Boxster 2000 29.0 MPG Highway Percentage 30 percent Porsche Boxster Porsche Boxster 2000 25.2 MPG Highway Percentage 38 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 2dr Convertible 315-horsepower 3.4L H6
7-speed automated manual RWD		 flat med hvy 0 20 0 80 70 20.7  
2011 2dr Convertible 255-horsepower 2.9L H6
6-speed manual RWD		 flat med light 0 15 35 50 70 16.0  
2010 2dr Convertible 310-horsepower 3.4L H6
6-speed manual RWD		 flat med none 0 38 25 38 75 20.8  
2010 2dr Convertible 255-horsepower 2.9L H6
7-speed automated manual RWD		 hills med light 5 20 0 75 85 24.2  
2008 2dr Convertible 295-horsepower 3.4L H6
6-speed manual RWD		 flat med none 9 18 47 27 69 21.5  
2008 2dr Convertible 245-horsepower 2.7L H6
5-speed manual RWD		 flat med light 0 50 48 3 75 21.8  
2007 2dr Convertible 295-horsepower 3.4L H6
6-speed manual RWD		 flat med none 1 1 18 80 73 25.8  
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2007 2dr Convertible 245-horsepower 2.7L H6
5-speed shiftable automatic RWD		 flat med none 32 32 32 4 60 16.0  
2007 2dr Convertible 245-horsepower 2.7L H6
5-speed manual RWD		 flat med light 2 3 40 55 62 26.1  
2006 2dr Convertible 280-horsepower 3.2L H6
6-speed manual RWD		 flat lead light 6 11 22 63 65 21.4  
2005 2dr Convertible 280-horsepower 3.2L H6
6-speed manual RWD		 flat med light 9 11 32 48 69 22.4  
2005 2dr Convertible 280-horsepower 3.2L H6
5-speed shiftable automatic RWD		 flat lead hvy 0 25 0 75 80 16.4  
2005 2dr Convertible 240-horsepower 2.7L H6
6-speed manual RWD		 flat med none 10 10 10 70 65 25.9  
2005 2dr Convertible 240-horsepower 2.7L H6
5-speed shiftable automatic RWD		 flat light light 0 5 45 50 65 25.6  
2005 2dr Convertible 240-horsepower 2.7L H6
5-speed manual RWD		 hills med light 12 18 28 43 63 24.2  
2004 2dr Convertible 264-horsepower 3.2L H6
6-speed manual RWD		 flat med light 8 28 18 48 65 20.7  
2004 2dr Convertible 258-horsepower 3.2L H6
6-speed manual RWD		 flat med hvy 0 15 5 80 65 25.9  
2004 2dr Convertible 258-horsepower 3.2L H6
5-speed shiftable automatic RWD		 flat lead hvy 20 30 25 25 70 21.0  
2004 2dr Convertible 228-horsepower 2.7L H6
5-speed manual RWD		 hills med light 1 3 50 47 65 25.3  
2003 2dr Convertible 258-horsepower 3.2L H6
6-speed manual RWD		 hills med none 12 12 38 38 61 21.9  
2003 2dr Convertible 258-horsepower 3.2L H6
5-speed shiftable automatic RWD		 flat med light 0 50 0 50 70 26.0  
2003 2dr Convertible 228-horsepower 2.7L H6
5-speed manual RWD		 flat light none 25 0 25 50 60 28.0  
2002 2dr Convertible 250-horsepower 3.2L H6
6-speed manual RWD		 flat med light 15 15 24 47 65 23.7  
2002 2dr Convertible 250-horsepower 3.2L H6
5-speed shiftable automatic RWD		 flat light light 25 25 10 40 100 29.4  
2002 2dr Convertible 217-horsepower 2.7L H6
5-speed shiftable automatic RWD		 flat med light 10 29 10 51 70 18.0  
2002 2dr Convertible 217-horsepower 2.7L H6
5-speed manual RWD		 hills lead none 3 5 29 64 60 23.4  
2001 2dr Convertible 250-horsepower 3.2L H6
6-speed manual RWD		 hills lead light 13 22 13 52 68 21.7  
2001 2dr Convertible 217-horsepower 2.7L H6
5-speed manual RWD		 flat med none 15 15 35 35 70 22.9  
2000 2dr Convertible 250-horsepower 3.2L H6
6-speed manual RWD		 hills med light 5 17 23 55 93 22.4  
2000 2dr Convertible 217-horsepower 2.7L H6
5-speed shiftable automatic RWD		 flat med none 10 10 50 30 60 29.0  
2000 2dr Convertible 217-horsepower 2.7L H6
5-speed manual RWD		 flat med none 7 23 32 38 70 25.2  

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

Pontiac G5 MPG

Pontiac G5 Pontiac G5 2009 33.5 MPG Highway Percentage 32 percent Pontiac G5 Pontiac G5 2009 32.0 MPG Highway Percentage 70 percent Pontiac G5 Pontiac G5 2008 25.9 MPG Highway Percentage 37 percent Pontiac G5 Pontiac G5 2008 27.1 MPG Highway Percentage 75 percent Pontiac G5 Pontiac G5 2008 28.4 MPG Highway Percentage 68 percent Pontiac G5 Pontiac G5 2008 24.8 MPG Highway Percentage 67 percent Pontiac G5 Pontiac G5 2007 29.7 MPG Highway Percentage 53 percent Pontiac G5 Pontiac G5 2007 25.9 MPG Highway Percentage 61 percent Pontiac G5 Pontiac G5 2007 28.9 MPG Highway Percentage 28 percent Pontiac G5 Pontiac G5 2007 29.4 MPG Highway Percentage 70 percent Pontiac G5 Pontiac G5 2006 24.4 MPG Highway Percentage 50 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
2009 2dr Coupe 155-horsepower 2.2L I4
5-speed manual FWD		 flat light none 5 52 12 32 63 33.5  
2009 2dr Coupe 155-horsepower 2.2L I4
4-speed automatic FWD		 flat light none 0 30 0 70 60 32.0  
2008 2dr Coupe 171-horsepower 2.4L I4
5-speed manual FWD		 flat med light 2 54 7 37 96 25.9  
2008 2dr Coupe 171-horsepower 2.4L I4
4-speed automatic FWD		 flat light none 7 18 0 75 75 27.1  
2008 2dr Coupe 148-horsepower 2.2L I4
5-speed manual FWD		 hills med light 6 16 12 68 90 28.4  
2008 2dr Coupe 148-horsepower 2.2L I4
4-speed automatic FWD		 flat med none 6 26 1 67 111 24.8  
2007 2dr Coupe 173-horsepower 2.4L I4
5-speed manual FWD		 flat lead none 4 20 23 53 75 29.7  
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2007 2dr Coupe 173-horsepower 2.4L I4
4-speed automatic FWD		 hills med none 6 12 20 61 74 25.9  
2007 2dr Coupe 148-horsepower 2.2L I4
5-speed manual FWD		 flat med none 5 50 18 28 98 28.9  
2007 2dr Coupe 148-horsepower 2.2L I4
4-speed automatic FWD		 flat light none 0 0 30 70 70 29.4  
2006 2dr Coupe 145-horsepower 2.2L I4
5-speed manual FWD		 flat med light 2 2 47 50 115 24.4  

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This page shows only averages. See all the Pontiac G5 fuel economy data.

Porsche Boxster vs. Pontiac G5 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 Porsche Boxster and Pontiac G5'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 Porsche models and Pontiac models.

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

Porsche Boxster Real Gas Mileage: Pros
YearBody/PowertrainComment
2002 2dr Convertible 217-horsepower 2.7L H6
5-speed shiftable automatic RWD		 mileage with performance see full Porsche Boxster review
2002 2dr Convertible 217-horsepower 2.7L H6
5-speed manual RWD		 Running the hills mostly safe speeds,and an occasional sprint or push through the corners I average 25 mpg/29 hwy.I think on a long boring drive possibly 32mpg see full Porsche Boxster review
 

What Our Members Are Saying about the Real Gas Mileage of the Pontiac G5

Pontiac G5 Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 2dr Coupe 155-horsepower 2.2L I4
5-speed manual FWD		 best for non-hybrid gasoline see full Pontiac G5 review
2008 2dr Coupe 171-horsepower 2.4L I4
5-speed manual FWD		 For a performance model very well average 22-23 mpg city see full Pontiac G5 review
2008 2dr Coupe 148-horsepower 2.2L I4
5-speed manual FWD		 24/33 for the manual transmission are pretty good fuel economy numbers. I beat the highway numbers on a long trip by a few points if I keep it at 65 mph (a/c on). see full Pontiac G5 review
2008 2dr Coupe 148-horsepower 2.2L I4
5-speed manual FWD		 once broken in and done properlly, and driven with the engine in its proper spot for efficiency in its powerband, its a great fuel efficient car that has tons of power to surprise! see full Pontiac G5 review
2008 2dr Coupe 171-horsepower 2.4L I4
5-speed manual FWD		 The Ecotech engine is one of the most economical on the road today. see full Pontiac G5 review
2008 2dr Coupe 171-horsepower 2.4L I4
5-speed manual FWD		 I drove fast, all the time, and still averaged 28mpg. see full Pontiac G5 review
2007 2dr Coupe 173-horsepower 2.4L I4
5-speed manual FWD		 my G5 is great on gas i put 93 in it and i get 28.6 mpg all city no highway. you cant ask for anything better. the power this car has and great gas miles its the best of both worlds. see full Pontiac G5 review
2007 2dr Coupe 148-horsepower 2.2L I4
5-speed manual FWD		 Very good economy even when driving it hard. see full Pontiac G5 review
2007 2dr Coupe 173-horsepower 2.4L I4
5-speed manual FWD		 The G5 blends the mileage and power that I was looking for in a car that would do primary duty for commuting to work and back. Was looking to get 30-33 mpg. see full Pontiac G5 review