MENU
1 0 3 4 3 4

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

Join Us

Porsche Boxster vs. Audi A5 / S5 / RS5 MPG

Chart is based on 102 fuel economy reports for the Porsche Boxster and 141 fuel economy reports for the Audi A5 / S5 / RS5.

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 24.7 MPG Highway Percentage 34 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  
Looking for a warranty? Get a quote.
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 5 18 44 34 70 24.7  

Return to top

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

Audi A5 / S5 / RS5 MPG

Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2013 27.4 MPG Highway Percentage 66 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2012 24.4 MPG Highway Percentage 29 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 15.6 MPG Highway Percentage 30 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 19.4 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 25.5 MPG Highway Percentage 50 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 25.2 MPG Highway Percentage 33 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 21.4 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 23.1 MPG Highway Percentage 55 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 20.3 MPG Highway Percentage 62 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 26.5 MPG Highway Percentage 23 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 47.0 MPG Highway Percentage 100 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 26.6 MPG Highway Percentage 43 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 15.9 MPG Highway Percentage 24 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 24.5 MPG Highway Percentage 32 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 Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 flat med light 0 0 34 66 75 27.4  
2012 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat med light 5 16 50 29 66 24.4  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 10 30 30 30 75 15.6  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 hills light light 3 8 20 70 73 19.4  
2011 2dr Convertible turbocharged 211hp 2.0L I4
8-speed shiftable CVT FWD		 flat light none 20 10 20 50 70 25.5  
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat lead none 9 11 47 33 72 25.2  
2010 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med hvy 10 10 10 70 120 21.4  
Looking for a warranty? Get a quote.
2010 2dr Convertible supercharged 333hp 3.0L V6
7-speed automated manual AWD		 hills med none 0 5 40 55 88 23.1  
2009 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat med none 0 17 22 62 67 20.3  
2009 2dr Coupe 265-horsepower 3.2L V6
6-speed manual AWD		 flat med light 10 28 40 23 68 26.5  
2008 2dr Coupe turbocharged 240hp 3.0L V6 Diesel
6-speed manual AWD		 flat light light 0 0 0 100 100 47.0  
2008 2dr Coupe turbocharged 170hp 1.8L I4
6-speed manual FWD		 flat med light 13 18 28 43 160 26.6  
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat lead none 1 14 60 24 73 15.9  
2008 2dr Coupe 265-horsepower 3.2L V6
6-speed shiftable automatic AWD		 flat med hvy 20 24 24 32 80 24.5  

Return to top

This page shows only averages. See all the Audi A5 / S5 / RS5 fuel economy data.

Porsche Boxster vs. Audi A5 / S5 / RS5 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 Audi A5 / S5 / RS5'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 Audi 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 Audi A5 / S5 / RS5

Audi A5 / S5 / RS5 Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 Mileage seems to have leveled out at about 27 mpg with a 60/40 mix of highway and suburban driving. On longer trips, it has been as high as 30 mpg while driving a steady 75 mph. see full Audi A5 / S5 / RS5 review
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 Averaging 9L/100KM, without feeling too conservative. see full Audi A5 / S5 / RS5 review
Audi A5 / S5 / RS5 Real Gas Mileage: Cons
YearBody/PowertrainComment
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 I knew what gas mileage the S5 got long before I stepped onto the dealer lot. Still, I get 24 mpg on a full highway run. see full Audi A5 / S5 / RS5 review
2009 2dr Coupe turbocharged 170hp 2.0L I4 Diesel
6-speed manual AWD		 Fuel economy is fair when going for a long ride, the car is AWD and heavy. I did however expect a somewhat lower fuel consumption when driving short-distance. see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 It is not great, and if you have fun with the car, you will get less than 15MPG see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 drinks too fast when driving is more aggressive see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 Thirsty V8 coupled with a car that was born to be driven hard equals mid-teen MPG in mostly non-highway driving. see full Audi A5 / S5 / RS5 review