Hyundai Genesis Coupe vs. Mazda RX-8 MPG

Chart is based on 114 fuel economy reports for the Hyundai Genesis Coupe and 202 fuel economy reports for the Mazda RX-8.

Hyundai Genesis Coupe MPG

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 274hp 2.0L I4 8-speed shiftable automatic RWD	flat	med	hvy	0	17	20	63	70	24.6
2013	2dr Coupe turbocharged 274hp 2.0L I4 6-speed manual RWD	flat	med	none	0	20	20	60	65	22.0
2013	2dr Coupe 348-horsepower 3.8L V6 6-speed manual RWD	flat	med	light	19	7	29	46	66	23.1
2012	2dr Coupe 306-horsepower 3.8L V6 6-speed shiftable automatic RWD	flat	med	light	24	25	26	26	75	25.0
2011	2dr Coupe turbocharged 210hp 2.0L I4 6-speed manual RWD	hills	med	hvy	8	8	20	65	80	23.0
2011	2dr Coupe turbocharged 210hp 2.0L I4 5-speed shiftable automatic RWD	flat	med	hvy	0	60	0	40	75	22.5
2011	2dr Coupe 306-horsepower 3.8L V6 6-speed shiftable automatic RWD	flat	med	hvy	5	15	58	23	80	22.4
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2011	2dr Coupe 306-horsepower 3.8L V6 6-speed manual RWD	flat	med	light	11	14	15	60	65	25.3
2010	2dr Coupe turbocharged 210hp 2.0L I4 6-speed manual RWD	flat	light	light	3	8	24	65	73	25.6
2010	2dr Coupe turbocharged 210hp 2.0L I4 5-speed shiftable automatic RWD	flat	med	light	11	28	18	44	83	20.3
2010	2dr Coupe 306-horsepower 3.8L V6 6-speed shiftable automatic RWD	flat	med	light	8	22	14	56	67	23.2
2010	2dr Coupe 306-horsepower 3.8L V6 6-speed manual RWD	flat	med	light	10	20	12	57	84	24.8

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This page shows only averages. See all the Hyundai Genesis Coupe fuel economy data.

Mazda RX-8 MPG

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.

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What Our Members Are Saying about the Real Gas Mileage of the Hyundai Genesis Coupe

Hyundai Genesis Coupe Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	2dr Coupe turbocharged 274hp 2.0L I4 6-speed manual RWD	I average around 26 mpg in mixed driving, with a moderately heavy right foot. On a long, flat roadtrip I averaged ~32 mpg with speeds ranging from ~70-80 mph. Even in city driving and stop-and-go traffic I rarely dip below 20 for a trip. see full Hyundai Genesis Coupe review
2010	2dr Coupe turbocharged 210hp 2.0L I4 6-speed manual RWD	Very good, better than a Rx-8, not as good as a Civic Si. see full Hyundai Genesis Coupe review

Hyundai Genesis Coupe Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2011	2dr Coupe turbocharged 210hp 2.0L I4 5-speed shiftable automatic RWD	For a 3400 pound car the fuel economy is really pretty good considering I have a turbo which I keep spinning up. The EPA numbers did not enter into my choice, however the manufacturer advertises 20 - 30 mpg which is a bit of a fantasy. A rating of 19 - 27 would be reasonable and kept a lot of people from complaining on the forums. I have personally seen 28 / 29 mpg on the highway so the 30 mpg is possible, but not practical. For a heavy turbo-charged RWD car my mileage is pretty good; just not what was advertised. see full Hyundai Genesis Coupe review
2011	2dr Coupe turbocharged 210hp 2.0L I4 6-speed manual RWD	For a 4 cylinder cat the MPG is not what I expected. see full Hyundai Genesis Coupe review
2010	2dr Coupe 306-horsepower 3.8L V6 6-speed shiftable automatic RWD	Highway fuel economy is decent for a large V6, but city fuel economy, especially in winter, struggles to break 13mpg. see full Hyundai Genesis Coupe review
2010	2dr Coupe 306-horsepower 3.8L V6 6-speed shiftable automatic RWD	Not terrific see full Hyundai Genesis Coupe review
2010	2dr Coupe turbocharged 210hp 2.0L I4 5-speed shiftable automatic RWD	Fuel Economy is my ONLY dislike of the Genesis Coupe. I was excepting less gas consumption especially in city driving. see full Hyundai Genesis Coupe review

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

Mazda RX-8 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
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