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Mazda RX-8 vs. Toyota Prius MPG

Chart is based on 202 fuel economy reports for the Mazda RX-8 and 2101 fuel economy reports for the Toyota Prius.

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.

Toyota Prius MPG

Toyota Prius Toyota Prius 2017 60.5 MPG Highway Percentage 15 percent Toyota Prius Toyota Prius 2017 64.2 MPG Highway Percentage 44 percent Toyota Prius Toyota Prius 2016 56.4 MPG Highway Percentage 17 percent Toyota Prius Toyota Prius 2015 44.8 MPG Highway Percentage 65 percent Toyota Prius Toyota Prius 2014 47.7 MPG Highway Percentage 40 percent Toyota Prius Toyota Prius 2013 60.0 MPG Highway Percentage 73 percent Toyota Prius Toyota Prius 2013 11.5 MPG Highway Percentage 27 percent Toyota Prius Toyota Prius 2012 66.6 MPG Highway Percentage 78 percent Toyota Prius Toyota Prius 2012 52.9 MPG Highway Percentage 31 percent Toyota Prius Toyota Prius 2011 49.7 MPG Highway Percentage 54 percent Toyota Prius Toyota Prius 2010 47.6 MPG Highway Percentage 45 percent Toyota Prius Toyota Prius 2010 35.8 MPG Highway Percentage 13 percent Toyota Prius Toyota Prius 2009 46.9 MPG Highway Percentage 60 percent Toyota Prius Toyota Prius 2008 49.0 MPG Highway Percentage 56 percent Toyota Prius Toyota Prius 2007 50.7 MPG Highway Percentage 43 percent Toyota Prius Toyota Prius 2006 49.4 MPG Highway Percentage 40 percent Toyota Prius Toyota Prius 2005 48.6 MPG Highway Percentage 52 percent Toyota Prius Toyota Prius 2004 45.6 MPG Highway Percentage 53 percent Toyota Prius Toyota Prius 2003 43.9 MPG Highway Percentage 37 percent Toyota Prius Toyota Prius 2002 46.1 MPG Highway Percentage 55 percent Toyota Prius Toyota Prius 2001 45.5 MPG Highway Percentage 41 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
2017 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
hills v.lt light 5 30 50 15 100 60.5  
2017 4dr Hatch 95-horsepower 1.8L I4 Hybrid
CVT FWD
hills light light 3 0 54 44 60 64.2  
2016 4dr Hatch 95-horsepower 1.8L I4 Hybrid
CVT FWD
flat light light 8 53 22 17 58 56.4  
2015 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat light none 0 2 34 65 70 44.8  
2014 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat light hvy 0 6 54 40 70 47.7  
2013 4dr Hatch 98-horsepower 1.8L I4 Plug-in Hybrid
CVT FWD
flat light light 0 3 24 73 69 60.0  
2013 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat med hvy 5 19 49 27 60 11.5  
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2012 4dr Hatch 98-horsepower 1.8L I4 Plug-in Hybrid
CVT FWD
flat v.lt hvy 2 19 2 78 73 66.6  
2012 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat v.lt light 8 45 15 31 57 52.9  
2011 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat light light 1 9 36 54 63 49.7  
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
flat med light 7 18 30 45 69 47.6  
2010 4dr Hatch flat med none 0 87 0 13 60 35.8  
2009 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 3 8 29 60 67 46.9  
2008 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 5 22 17 56 62 49.0  
2007 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
hills light light 13 26 19 43 64 50.7  
2006 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 8 21 31 40 66 49.4  
2005 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 6 14 28 52 70 48.6  
2004 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
flat light none 9 20 18 53 92 45.6  
2003 4dr Sedan 70-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 8 23 32 37 68 43.9  
2002 4dr Sedan 70-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 14 8 23 55 66 46.1  
2001 4dr Sedan 70-horsepower 1.5L I4 Hybrid
CVT FWD
flat light light 10 28 21 41 68 45.5  

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This page shows only averages. See all the Toyota Prius fuel economy data.

Mazda RX-8 vs. Toyota Prius 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 Toyota Prius'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.

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See TrueDelta's information for all Mazda models and Toyota 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
 

TrueDelta Reviews the Real Gas Mileage of the Toyota Prius

Toyota Prius Real Gas Mileage: Pros
YearComment
2016 The new Toyota Prius's EPA ratings are the best of any car without a plug: 54 mpg city, 50 mpg highway. Well, almost. That honor specifically goes to the Prius Two Eco, the variant I tested. With more battery-powered range, some aerodynamic enhancements, and a slightly lower curb weight, the Prius Two Eco scores 58/53. The Ford C-MAX's EPA ratings aren't in the same league: 42/37. When running on gasoline, the Chevrolet Volt doesn't test as well as the Prius: 42/43. But you can plug in the Volt for about 50 miles of electric-only range. The new Honda Civic, among the most fuel-efficient non-hybrid compacts, manages 31/41. In my real-world driving the Prius Two Eco easily beat its EPA ratings, at least in temperate weather. Driven with a very light foot on my standard suburban route, it twice averaged 93 mpg, easily the best in my testing of any car without a plug. When the air temperature dropped into the 40s, though, I couldn't quite manage 60 mpg. On a 70-mph highway in mild weather the Prius averaged just over 60 mpg. Overall for the week it averaged 65 mpg, nearly double the C-MAX and more than double the Civic. My efforts were aided by some of the most thorough driving style feedback you'll find in a car. The Prius scores how you acclerate, cruise, and brake, and provides tips for improvement. It also stores your average mpg daily for a month, then monthly over a long time period. see full Toyota Prius review
 

What Our Members Are Saying about the Real Gas Mileage of the Toyota Prius

Toyota Prius Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
This is the obvious number one reason to buy a Prius. Unlike Ford, Nissan and others who make hybrid vehicles, the Toyota usually came out ahead in MPG- even in the freezing cold winter of Minnesota. The mileage ranged from 42+ in the winter to well over 59-62 in the spring-fall. My best tank was 601 miles to a tank of regular Costco gas. see full Toyota Prius review
2011 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
Great, a number one factor with high gas prices. see full Toyota Prius review
2011 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
The gas mileage of the Prius is unbeatable. With the price of gas climing at the pump it was time to buy the Prius. see full Toyota Prius review
2011 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
Fuel economy is excellent. Also, the car is very rromy with lots of leg room and can carry some pretty big cargo. I once had 7 people in it for 15 minutes, not recomended as it was reaaly slow and too heavy for its braking power. In 25,00 miles NOTHING has gone wrong or needed repair. see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
The new Prius is even easier to drive in a responsible manner and has improve MPG from previous models. see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
it gives the highest mileage among all cars. Beats Honda Insight hands down. see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
It gets 40+ mpg no matter how badly you drive it. see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
52 mile commute to work every day and averaging approximately 50 mpg. Reduces USA dependence on foreign oil and carbon footprint. see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
The Prius 50 MPG mixed driving is realistic. The worst MPG I have seen is 45 MPG and the best was 56 MPG. I can only compare that to tests results I have seen where the Insight is 38-42 MPG see full Toyota Prius review
2010 4dr Hatch 98-horsepower 1.8L I4 Hybrid
CVT FWD
What is not to like?! see full Toyota Prius review
Toyota Prius Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr Hatch 76-horsepower 1.5L I4 Hybrid
CVT FWD
The engine continues to run when I stop at a stop street, red light or in traffic. That is a sin. There is no excuse to continue running any engine if the car is not moving. see full Toyota Prius review