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Mazda RX-8 vs. BMW Z4 MPG

Chart is based on 202 fuel economy reports for the Mazda RX-8 and 87 fuel economy reports for the BMW Z4.

Mazda RX-8 MPG

Mazda RX-8 Mazda RX-8 2010 17.1 MPG Highway Percentage 55 percent Mazda RX-8 Mazda RX-8 2009 17.5 MPG Highway Percentage 53 percent Mazda RX-8 Mazda RX-8 2008 20.9 MPG Highway Percentage 67 percent Mazda RX-8 Mazda RX-8 2007 18.4 MPG Highway Percentage 33 percent Mazda RX-8 Mazda RX-8 2007 22.5 MPG Highway Percentage 51 percent Mazda RX-8 Mazda RX-8 2006 19.1 MPG Highway Percentage 67 percent Mazda RX-8 Mazda RX-8 2006 17.3 MPG Highway Percentage 3 percent Mazda RX-8 Mazda RX-8 2005 18.6 MPG Highway Percentage 60 percent Mazda RX-8 Mazda RX-8 2004 17.5 MPG Highway Percentage 44 percent Mazda RX-8 Mazda RX-8 2004 17.3 MPG Highway Percentage 23 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
2010 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med light 1 22 22 55 74 17.1  
2009 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med none 2 16 29 53 68 17.5  
2008 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med light 3 16 15 67 72 20.9  
2007 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med none 5 14 48 33 79 18.4  
2007 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 flat med light 15 24 10 51 78 22.5  
2006 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med none 9 10 13 67 66 19.1  
2006 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 flat med light 5 28 65 3 60 17.3  
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2005 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med light 6 16 18 60 77 18.6  
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med light 7 25 24 44 77 17.5  
2004 4dr Coupe 197-horsepower 1.3L R2
4-speed shiftable automatic RWD		 flat lead light 42 12 23 23 70 17.3  

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This page shows only averages. See all the Mazda RX-8 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.

Mazda RX-8 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 Mazda RX-8 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 Coupes
See TrueDelta's information for all Mazda models and BMW models.

What Our Members Are Saying about the Real Gas Mileage of the Mazda RX-8

Mazda RX-8 Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 One of the big downsides of the rotary is truly horrendous fuel economy. When the RX-8 first came out in the early 2000s, its mileage ratings of 16/22 city/highway mpg (stick shift) were just barely acceptable, but there days, with many crossovers hitting more than 30 mpg on the highway, those figures are truly atrocious, especially given respectable but certainly not neck-snapping power. Futhermore, it takes premium. If you're using the RX-8 as it commuter, fuel costs will add up quickly. In my predominantly around-town driving, I typically average between 16-17 mpg. My highest recorded average was 20 mpg on a highway trip at speeds around 75 mph. see full Mazda RX-8 review
2007 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 The EPA numbers are way low compared with my real-world experience. The window sticker showed 18/25 and I have never seen less than 23 with my 40/60 city/highway commute. I think Mazda should develop a lean-burn economy cruise mode for this car. see full Mazda RX-8 review
2006 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Lite bit to high consumption when I drive it in normal speed. On full woot its ok. see full Mazda RX-8 review
2005 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Worst fuel economy in its class. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Not that bad for what it is, but it seems to me that Mazda's Sky Active technology could help the city mileage. It just needs more R&D. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 At 16 m.p.g. on premium grade these days it could be cheaper to take a taxi. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 For a small engine displacement and a relatively light vehicle weight, the gas mileage is weak. I usualy get around 19mpg, and that does not realy matter if I am doing all city or all highway driving. I think the real problem is in the sixth gear it isnt much different than fifth gear so it does not provide good fuel economy. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 For a car with a 1.9 liter engine I would have expected better than 16-19 MPG. Get your foot into it and the numbers fall drastically. Otherwise I loved that car. It just got too small with a newborn and a big dog. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 I gets 20MPG no matter what I do. Running around 20. 1/2 highway 20. All the highway all day 25-26. I think that it could do better. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 16-18MPG city, 24MPG highway see full Mazda RX-8 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