MENU
1 0 3 4 3 4

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

Join Us

Pontiac GTO vs. Porsche Cayman MPG

Chart is based on 33 fuel economy reports for the Pontiac GTO and 20 fuel economy reports for the Porsche Cayman.

Pontiac GTO MPG

Pontiac GTO Pontiac GTO 2006 18.8 MPG Highway Percentage 48 percent Pontiac GTO Pontiac GTO 2006 18.1 MPG Highway Percentage 30 percent Pontiac GTO Pontiac GTO 2005 19.0 MPG Highway Percentage 51 percent Pontiac GTO Pontiac GTO 2005 16.7 MPG Highway Percentage 45 percent Pontiac GTO Pontiac GTO 2004 20.8 MPG Highway Percentage 51 percent Pontiac GTO Pontiac GTO 2004 15.0 MPG Highway Percentage 11 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
2006 2dr Coupe 400-horsepower 6.0L V8
6-speed manual RWD		 flat med light 9 27 17 48 70 18.8  
2006 2dr Coupe 400-horsepower 6.0L V8
4-speed automatic RWD		 flat med hvy 50 10 10 30 70 18.1  
2005 2dr Coupe 400-horsepower 6.0L V8
6-speed manual RWD		 flat med light 7 14 27 51 68 19.0  
2005 2dr Coupe 400-horsepower 6.0L V8
4-speed automatic RWD		 flat lead light 12 5 39 45 65 16.7  
2004 2dr Coupe 350-horsepower 5.7L V8
6-speed manual RWD		 flat med light 10 17 22 51 70 20.8  
2004 2dr Coupe 350-horsepower 5.7L V8
4-speed automatic RWD		 flat med none 4 49 36 11 65 15.0  

Return to top

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

Porsche Cayman MPG

Porsche Cayman Porsche Cayman 2008 21.8 MPG Highway Percentage 44 percent Porsche Cayman Porsche Cayman 2008 25.5 MPG Highway Percentage 75 percent Porsche Cayman Porsche Cayman 2007 21.0 MPG Highway Percentage 5 percent Porsche Cayman Porsche Cayman 2007 22.5 MPG Highway Percentage 45 percent Porsche Cayman Porsche Cayman 2007 22.3 MPG Highway Percentage 50 percent Porsche Cayman Porsche Cayman 2006 19.8 MPG Highway Percentage 47 percent Porsche Cayman Porsche Cayman 2006 18.5 MPG Highway Percentage 15 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
2008 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 flat med light 10 31 15 44 69 21.8  
2008 2dr Hatch 245-horsepower 2.7L H6
5-speed manual RWD		 flat med light 0 0 25 75 70 25.5  
2007 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 flat med light 0 0 95 5 60 21.0  
2007 2dr Hatch 295-horsepower 3.4L H6
5-speed shiftable automatic RWD		 flat med hvy 25 25 5 45 70 22.5  
2007 2dr Hatch 245-horsepower 2.7L H6
5-speed manual RWD		 hills med light 0 14 36 50 73 22.3  
2006 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 flat lead none 14 15 24 47 70 19.8  
2006 2dr Hatch 295-horsepower 3.4L H6
5-speed shiftable automatic RWD		 flat med none 0 85 0 15 60 18.5  

Return to top

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

Pontiac GTO vs. Porsche Cayman 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 Pontiac GTO and Porsche Cayman'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 Pontiac models and Porsche models.

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

Pontiac GTO Real Gas Mileage: Pros
YearBody/PowertrainComment
2004 2dr Coupe 350-horsepower 5.7L V8
6-speed manual RWD		 for a V8 with 350 horse probably about 400+ now still get 25 mpg on the highway at like 75-80. see full Pontiac GTO review
Pontiac GTO Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 2dr Coupe 400-horsepower 6.0L V8
6-speed manual RWD		 6.0L LS2 V8 + 6-spd manual = foot on the gas a lot. A LOT. comes with the territory, avg about 20MPG mostly on highway, so not bad. see full Pontiac GTO review
2004 2dr Coupe 350-horsepower 5.7L V8
4-speed automatic RWD		 Best highway mileage 21 mpg; avg. 14-15 around town. MUCH more noticeable now than in 2004!! see full Pontiac GTO review
2004 2dr Coupe 350-horsepower 5.7L V8
6-speed manual RWD		 13-15 mpg around town on short trips. Much better on the highway, up to about 26 mpg. see full Pontiac GTO review
 

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

Porsche Cayman Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 It is better than I expected. I average roughly 23 miles with city and highway commuting on days I choose to take it to the office. On trips I can get 26 mpg, not stellar but not awful. see full Porsche Cayman review
2008 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 Fuel economy is reasonable relative to the car's performance - 20 mpg, plus or minus a couple depending on the balance of city versus highway driving. see full Porsche Cayman review
Porsche Cayman Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 2dr Hatch 295-horsepower 3.4L H6
6-speed manual RWD		 It sucks if you are driving the car correctly. On the slab I can see 26 mpg. see full Porsche Cayman review