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Kia Optima vs. BMW Z4 MPG

Chart is based on 152 fuel economy reports for the Kia Optima and 87 fuel economy reports for the BMW Z4.

Kia Optima MPG

Kia Optima Kia Optima 2019 26.7 MPG Highway Percentage 40 percent Kia Optima Kia Optima 2017 52.6 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2016 39.0 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2013 25.5 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2013 27.1 MPG Highway Percentage 54 percent Kia Optima Kia Optima 2013 32.5 MPG Highway Percentage 71 percent Kia Optima Kia Optima 2012 25.6 MPG Highway Percentage 39 percent Kia Optima Kia Optima 2012 32.3 MPG Highway Percentage 76 percent Kia Optima Kia Optima 2011 28.0 MPG Highway Percentage 68 percent Kia Optima Kia Optima 2011 28.7 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2011 30.0 MPG Highway Percentage 75 percent Kia Optima Kia Optima 2010 20.0 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2010 36.2 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2009 29.1 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2008 26.3 MPG Highway Percentage 10 percent Kia Optima Kia Optima 2008 26.2 MPG Highway Percentage 25 percent Kia Optima Kia Optima 2007 29.5 MPG Highway Percentage 78 percent Kia Optima Kia Optima 2007 23.2 MPG Highway Percentage 15 percent Kia Optima Kia Optima 2006.5 24.6 MPG Highway Percentage 58 percent Kia Optima Kia Optima 2006.5 28.9 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2006.5 30.0 MPG Highway Percentage 90 percent Kia Optima Kia Optima 2005 12.1 MPG Highway Percentage 0 percent Kia Optima Kia Optima 2004 30.0 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 MPG
2019 4dr Sedan turbocharged 245hp 2.0L I4
6-speed shiftable automatic FWD		 flat med hvy 0 10 50 40 70 26.7  
2017 4dr Sedan 154-horsepower 2.0L I4 Hybrid
6-speed shiftable automatic FWD		 flat light light 30 30 20 20 70 52.6  
2016 4dr Sedan turbocharged 178hp 1.6L I4
7-speed automated manual FWD		 hills light light 6 0 14 80 67 39.0  
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD		 flat light light 0 24 21 56 69 25.5  
2013 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD		 flat light none 0 32 14 54 83 27.1  
2013 4dr Sedan 159-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD		 flat v.lt none 2 13 15 71 102 32.5  
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD		 hills light light 4 18 39 39 72 25.6  
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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 32.3  
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD		 hills med light 0 5 28 68 70 28.0  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD		 hills light none 4 7 21 67 66 28.7  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed manual FWD		 flat med light 0 5 20 75 75 30.0  
2010 4dr Sedan 194-horsepower 2.7L V6
5-speed shiftable automatic FWD		 flat med light 0 10 70 20 75 20.0  
2010 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD		 flat light none 0 0 20 80 63 36.2  
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD		 flat light light 5 12 16 67 65 29.1  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed shiftable automatic FWD		 flat light light 20 60 10 10 60 26.3  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD		 flat lead light 30 15 30 25 75 26.2  
2007 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD		 flat med none 7 13 3 78 108 29.5  
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD		 hills med none 1 36 48 15 63 23.2  
2006.5 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD		 flat light hvy 6 4 33 58 66 24.6  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD		 flat light light 18 16 9 56 63 28.9  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed manual FWD		 flat light hvy 0 0 10 90 60 30.0  
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD		 hills lead light 5 95 0 0 0 12.1  
2004 4dr Sedan 138-horsepower 2.4L I4
5-speed manual FWD		 flat light hvy 0 0 5 95 70 30.0  

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This page shows only averages. See all the Kia Optima fuel economy data.

BMW Z4 MPG

BMW Z4 BMW Z4 2011 22.8 MPG Highway Percentage 45 percent BMW Z4 BMW Z4 2010 24.0 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2010 24.7 MPG Highway Percentage 77 percent BMW Z4 BMW Z4 2009 19.6 MPG Highway Percentage 19 percent BMW Z4 BMW Z4 2009 26.5 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2008 27.4 MPG Highway Percentage 100 percent BMW Z4 BMW Z4 2008 24.2 MPG Highway Percentage 80 percent BMW Z4 BMW Z4 2008 29.8 MPG Highway Percentage 75 percent BMW Z4 BMW Z4 2007 20.0 MPG Highway Percentage 42 percent BMW Z4 BMW Z4 2007 26.6 MPG Highway Percentage 69 percent BMW Z4 BMW Z4 2007 26.7 MPG Highway Percentage 47 percent BMW Z4 BMW Z4 2007 18.0 MPG Highway Percentage 27 percent BMW Z4 BMW Z4 2007 25.7 MPG Highway Percentage 25 percent BMW Z4 BMW Z4 2007 30.6 MPG Highway Percentage 70 percent BMW Z4 BMW Z4 2006 28.2 MPG Highway Percentage 25 percent BMW Z4 BMW Z4 2006 26.7 MPG Highway Percentage 50 percent BMW Z4 BMW Z4 2006 17.7 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2006 27.0 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2006 25.2 MPG Highway Percentage 32 percent BMW Z4 BMW Z4 2006 27.4 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2005 28.1 MPG Highway Percentage 75 percent BMW Z4 BMW Z4 2005 21.4 MPG Highway Percentage 43 percent BMW Z4 BMW Z4 2005 23.0 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2004 26.8 MPG Highway Percentage 21 percent BMW Z4 BMW Z4 2004 27.0 MPG Highway Percentage 67 percent BMW Z4 BMW Z4 2004 29.1 MPG Highway Percentage 10 percent BMW Z4 BMW Z4 2003 27.2 MPG Highway Percentage 53 percent BMW Z4 BMW Z4 2003 26.8 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2003 25.6 MPG Highway Percentage 40 percent BMW Z4 BMW Z4 2003 34.4 MPG Highway Percentage 68 percent BMW Z4 BMW Z4 2003 26.1 MPG Highway Percentage 60 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
2011 2dr Hardtop conv. turbocharged 335hp 3.0L I6
7-speed automated manual RWD		 hills med light 0 20 35 45 70 22.8  
2010 2dr Hardtop conv. turbocharged 300hp 3.0L I6
7-speed automated manual RWD		 flat med light 5 15 60 20 80 24.0  
2010 2dr Hardtop conv. turbocharged 300hp 3.0L I6
6-speed manual RWD		 flat lead light 3 0 20 77 72 24.7  
2009 2dr Hardtop conv. turbocharged 300hp 3.0L I6
7-speed automated manual RWD		 hills med hvy 10 5 67 19 120 19.6  
2009 2dr Hardtop conv. 255-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat med hvy 9 9 27 55 70 26.5  
2008 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD		 flat light light 0 0 0 100 73 27.4  
2008 2dr Convertible 255-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat light none 0 10 10 80 100 24.2  
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2008 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat med hvy 17 3 6 75 75 29.8  
2007 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD		 flat med none 8 22 28 42 65 20.0  
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat lead light 8 15 8 69 68 26.6  
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD		 flat med light 12 16 25 47 72 26.7  
2007 2dr Convertible 330-horsepower 3.2L I6
6-speed manual RWD		 flat lead none 50 17 7 27 75 18.0  
2007 2dr Convertible 255-horsepower 3.0L I6
6-speed manual RWD		 flat med light 7 22 47 25 60 25.7  
2007 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat light hvy 1 4 25 70 70 30.6  
2006 2dr Hatch 255-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat light none 0 15 60 25 70 28.2  
2006 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD		 flat med light 10 10 30 50 65 26.7  
2006 2dr Convertible 330-horsepower 3.2L I6
6-speed manual RWD		 flat med none 8 46 25 20 78 17.7  
2006 2dr Convertible 255-horsepower 3.0L I6
6-speed shiftable automatic RWD		 flat med hvy 0 0 45 55 60 27.0  
2006 2dr Convertible 255-horsepower 3.0L I6
6-speed manual RWD		 flat med light 2 28 38 32 70 25.2  
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD		 flat med light 7 13 25 55 74 27.4  
2005 2dr Convertible 225-horsepower 3.0L I6
5-speed shiftable automatic RWD		 hills med light 1 1 23 75 65 28.1  
2005 2dr Convertible 184-horsepower 2.5L I6
5-speed shiftable automatic RWD		 flat lead hvy 15 25 18 43 60 21.4  
2005 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD		 hills light none 10 40 30 20 65 23.0  
2004 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD		 flat med none 4 20 55 21 67 26.8  
2004 2dr Convertible 184-horsepower 2.5L I6
5-speed shiftable automatic RWD		 flat med hvy 0 0 33 67 70 27.0  
2004 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD		 flat light none 0 10 80 10 65 29.1  
2003 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD		 flat med light 8 8 30 53 70 27.2  
2003 2dr Convertible 225-horsepower 3.0L I6
6-speed automated manual RWD		 flat light light 10 20 50 20 60 26.8  
2003 2dr Convertible 225-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 20 20 20 40 60 25.6  
2003 2dr Convertible 184-horsepower 2.5L I6
6-speed automated manual RWD		 flat light light 8 5 20 68 70 34.4  
2003 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD		 flat med none 2 7 31 60 77 26.1  

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This page shows only averages. See all the BMW Z4 fuel economy data.

Kia Optima vs. BMW Z4 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 Kia Optima and BMW Z4'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 Sedans and Wagons.
See TrueDelta's information for all Kia models and BMW 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 BMW Z4

BMW Z4 Real Gas Mileage: Pros
YearBody/PowertrainComment
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD		 it gets better fuel economy than the M coupe, but still out performs the 2.5i and 3.0i models. see full BMW Z4 review
2007 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD		 Fuel economy is great. Getting 30 to 33 mpg on trips on 2 lane rural highways at 65 to 70 mph. see full BMW Z4 review
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD		 Around town I get about 23 mpg but on the open highway, get 30 to 32 mpg which is huge since the Z only uses premium grade gas. see full BMW Z4 review
2004 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD		 Average 26-27mpg combined city/highway in daily commuter driving (no expressway)...even with some spirited driving. see full BMW Z4 review
BMW Z4 Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD		 City driving only about 17 MPG; highway driving 21 MPG see full BMW Z4 review