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Kia Optima vs. Pontiac Grand Prix Fuel Economy (g/100m)

Chart is based on 152 fuel economy reports for the Kia Optima and 102 fuel economy reports for the Pontiac Grand Prix.

Kia Optima g/100m

Kia Optima Kia Optima 2019 3.7 MPG Highway Percentage 40 percent Kia Optima Kia Optima 2017 1.9 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2016 2.6 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2013 4.1 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2013 11.1 MPG Highway Percentage 54 percent Kia Optima Kia Optima 2013 14.1 MPG Highway Percentage 71 percent Kia Optima Kia Optima 2012 4.0 MPG Highway Percentage 39 percent Kia Optima Kia Optima 2012 3.2 MPG Highway Percentage 76 percent Kia Optima Kia Optima 2011 3.6 MPG Highway Percentage 68 percent Kia Optima Kia Optima 2011 3.5 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2011 3.3 MPG Highway Percentage 75 percent Kia Optima Kia Optima 2010 5.0 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2010 2.8 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2009 3.5 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2008 3.8 MPG Highway Percentage 10 percent Kia Optima Kia Optima 2008 3.8 MPG Highway Percentage 25 percent Kia Optima Kia Optima 2007 19.8 MPG Highway Percentage 78 percent Kia Optima Kia Optima 2007 4.4 MPG Highway Percentage 15 percent Kia Optima Kia Optima 2006.5 4.1 MPG Highway Percentage 58 percent Kia Optima Kia Optima 2006.5 3.5 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2006.5 3.3 MPG Highway Percentage 90 percent Kia Optima Kia Optima 2005 8.3 MPG Highway Percentage 0 percent Kia Optima Kia Optima 2004 3.3 MPG Highway Percentage 95 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
2019 4dr Sedan turbocharged 245hp 2.0L I4
6-speed shiftable automatic FWD
flat med hvy 0 10 50 40 70 3.7  
2017 4dr Sedan 154-horsepower 2.0L I4 Hybrid
6-speed shiftable automatic FWD
flat light light 30 30 20 20 70 1.9  
2016 4dr Sedan turbocharged 178hp 1.6L I4
7-speed automated manual FWD
hills light light 6 0 14 80 67 2.6  
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat light light 0 24 21 56 69 4.1  
2013 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat light none 0 32 14 54 83 11.1  
2013 4dr Sedan 159-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD
flat v.lt none 2 13 15 71 102 14.1  
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
hills light light 4 18 39 39 72 4.0  
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2012 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat med none 0 4 20 76 69 3.2  
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
hills med light 0 5 28 68 70 3.6  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
hills light none 4 7 21 67 66 3.5  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed manual FWD
flat med light 0 5 20 75 75 3.3  
2010 4dr Sedan 194-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat med light 0 10 70 20 75 5.0  
2010 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light none 0 0 20 80 63 2.8  
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 5 12 16 67 65 3.5  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 20 60 10 10 60 3.8  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
flat lead light 30 15 30 25 75 3.8  
2007 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat med none 7 13 3 78 108 19.8  
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
hills med none 1 36 48 15 63 4.4  
2006.5 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat light hvy 6 4 33 58 66 4.1  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 18 16 9 56 63 3.5  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed manual FWD
flat light hvy 0 0 10 90 60 3.3  
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
hills lead light 5 95 0 0 0 8.3  
2004 4dr Sedan 138-horsepower 2.4L I4
5-speed manual FWD
flat light hvy 0 0 5 95 70 3.3  

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This page shows only averages. See all the Kia Optima 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.

Kia Optima 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 Kia Optima 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 Sedans and Wagons.
See TrueDelta's information for all Kia models and Pontiac models.

TrueDelta Reviews the Real Gas Mileage of the Kia Optima

Kia Optima Real Gas Mileage: Pros
YearComment
2013 Many auto makers are substituting turbocharged fours for V6s because of their theoretically superior fuel economy. The Kia Optima SXL earns EPA ratings of 22 mpg city, 34 highway. The similarly turbo-foured Ford Fusion comes close, 22/33. The most fuel efficient V6, in the new Honda Accord, manages 21/34 without paddle shifters, but 21/32 with them. Trip computer numbers suggest a one-to-two mpg advantage for the Kia in real-world suburban driving--perhaps too close to call since these devices aren't terribly precise. Figure just under 20 with a heavy foot, mid-20s if you resist the temptation, and just over 30 with a very light foot and luck with the lights. All of these figures are with the engine warmed up. In cold weather, fuel economy is in the mid-teens for the first mile or two. An eco mode makes little noticeable difference in either how the car drives or its fuel economy. These numbers don't seem particularly good? Recall that the Kia Optima SXL is a very quick car. You won't find a 274-horsepower sedan that does better without the aid of a battery pack. see full Kia Optima review
 

What Our Members Are Saying about the Real Gas Mileage of the Kia Optima

Kia Optima Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
I find fuel economy, in mixed driving, to be on par with a V6 of comparable power. I usually get about 24 MPG in combined driving. However, on a recent road trip, I had 32 MPG on one tank. It's perhaps slightly better than the Acura TL I had, but one big bonus: the Acura required premium unleaded. On the Kia Optima, however, the manufacturer only calls for regular unleaded. Over time, that can mean a significant savings. see full Kia Optima review
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
This is my biggest (and only real) complaint with the Optima. It advertises fuel economy of 22 city, 34 highway. I drive a lot (100 mile round trip daily, with more than half of it being highway miles). Admittedly, I have a heavy foot, but I regularly get about 24-25 mpg combined, with the car in ECO mode. The best tank of gas I ever got was a little over 28 mpg. (I calculate it manually, don't rely on the on-board MPG estimates, as they are always 3-5 MPG more generous than reality.) see full Kia Optima review
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
High 30s on the highway and 29-30 overall with a lot of power. Active eco. setting for better economy. see full Kia Optima review
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
33 mpg on 200 mile trips at about 65 mph avg. see full Kia Optima review
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
Decent fuel mileage at this point for a mid-size sedan. see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
25-30 city/hwy see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
It may be a bit borderline in 100% city driving (19-20 mpg), but it gets 33mpg+ on the open highway, with only a 1-2 mpg penalty for using A/C. see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
got 42 mgh yesteerday on a 120 minute drive 25%/75% in town/highway driving. Like paying $2.25 per gallon, see full Kia Optima review
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
AS above see full Kia Optima review
Kia Optima Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
I'd recommend this car in a heartbeat. I honestly like this styling even more than the updates they've made since 2012. My biggest cons are the fuel economy and the lack of a manual transmission on any models other than the base model. see full Kia Optima 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