Used 2004 Mazda RX-8 Coupe

Pros & Cons

  • Low base price, agile handling yet still comfortable enough for daily use, room for four in a pinch.
  • Option packages can get expensive, iffy interior ergonomics.
Other years
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Edmunds' Expert Review

Regardless of how many doors the RX-8 has, it is ultimately a sports coupe. We applaud Mazda's return to building affordable, non-conformist performance cars.

Vehicle overview

Sports cars are fast and fun. Truth be told, they're also usually a purely selfish indulgence. Their powerful engines are often gas-guzzlers, less than friendly to the environment. And they're typically two-seaters, making them of little use to friends and/or family who may be longing to come along for the ride. Mazda has created a kinder, more generous sort of sports car. The Concept RX-8, the company's thinly veiled future flagship vehicle, seats four and boasts an engine that's both powerful and fuel-efficient.

Powering the RX-8 is a 1.3-liter 250-horsepower rotary engine. Mazda has had 40 years of experience producing rotaries and is the only manufacturer in the world that offers a pure rotational internal combustion engine. The RX-8's engine -- dubbed the Renesis -- is a new type of rotary, similar to the one that was offered in Mazda's RX-7 (last sold here in 1995), but with a few significant improvements. It makes almost as much power as the RX-7's turbocharged engine (with power levels up to 250 horsepower at 8,500 rpm), but is 30 percent lighter and more compact. Unlike previous rotaries, which used side exhaust ports and peripheral intake ports, the naturally aspirated Renesis has intake and exhaust ports in the side housings; this configuration eliminates overlap between the opening of the intake and exhaust ports, improving combustion efficiency and permitting the engine enhanced fuel economy and reduced emissions. And compared to the RX-7's rotary, the engine's intake ports open sooner, and its exhaust ports open later, resulting in a longer power stroke and improved heat efficiency. Backing the Renesis is a six-speed automanual transmission.

The fact that the Renesis is not as tall as other rotaries brings with it significant advantages when it comes to the RX-8's overall layout. At about the same height as the transmission, the engine's bantam stature allows it to be mounted near the center of the body -- 60 millimeters closer to the center than in an RX-7 -- helping the car to achieve 50/50 front/rear weight distribution. Additionally, its compactness plays a part in enabling the RX-8 to offer sedan-size cabin space without compromising its low-slung sports-car lines. "The use of a compact rotary engine allows for the low hood, short overhangs and overall sports car look, while providing interior room on par with a sport sedan," says Kei Kado, Mazda's senior managing director in charge of R&D and Quality Assurance. The engine's weight, size, low center of gravity and positioning also work to enhance the car's maneuverability and performance.

Scrutinize the RX-8's doors, and you'll see that the car offers something new in this area, as well. The sedan boasts an unusual freestyle door system, with no center pillar; doors are front- and rear-hinged, making rear-seat ingress and egress faster and easier.

The RX-8 features a double-wishbone suspension at all four corners. The upper and lower arms in both the front and rear are considerably longer than those on the RX-7, allowing for consistent grip regardless of changes in roll and camber, and providing a smooth roll center and top-notch cornering performance. Additionally, the car's rear suspension springs are positioned lower than usual, giving the car more trunk space than your typical sports car.

Buyers deserve the opportunity to own the ingenious RX-8, and Mazda seems determined to make this concept car a reality. "With its four-door freestyle door system, four-passenger comfort and Renesis rotary engine, the Mazda RX-8 is the next big thing in sports cars," says Mazda President Mark Fields. "I wouldn't be surprised if you see this car -- or something very close -- on some of the world's most scenic, fun-to-drive highways in the not-so-distant future."

2004 Highlights

The RX-8 is an all-new car for 2004. Its arrival marks the return of Mazda's rotary engine to the U.S. market. Priced less than Nissan's 350Z, the RX-8 also offers four doors and a usable backseat.

Consumer reviews

Read what other owners think about the 2004 Mazda RX-8.

Trending topics in reviews

Most helpful consumer reviews

Some people will never be happy. I am!
Manual 4dr Coupe (1.3L 2rtr 6M)
I have no complaints from this vehicle. As a former RX-7 owner I knew what to expect from the rotary. The 8 is not the replacement for the 7. It is a sports car, but remains "civilized". I have had a single problem with the exhaust, which was covered under warranty. I expected a few issues being the first year of production and bringing the rotary back after 8-9 years. If you are whinny and do not like to pay attention to your vehicle, buy a Honda. This is a car for people who love cars, not for people who are easily inconvenienced. Check the oil, let it warm up, don't drive a rear wheel drive sports car in snow, 9k RPMs will use gas. Common sense stuff that seems to annoy people.
Best College Car/Roadtrip Car/ Daily Commute Car
Hariz Radzi,10/09/2017
Automatic 4dr Coupe (1.3L 2rtr 4A)
Before you buy a used car, its your responsibility to check every single possible indicators that will say your car is a lemon. I'm the 6th owner of my rx8 with 132000 miles on it. And since day 1 I got it till today, it only went to the mechanic ONCE during my last roadtrip to Maine from Ohio because I forgot to change the ignition coils. After changing it for 30 minutes at the mechanic, I was back on my road to Maine. My car never got towed during my ownership ever before, even when the 2 coils were cracked that time it could still run (like not more than 30 mph of course) and I could still drive it to the workshop. Owning it was hard work (especially maintenance) but once you get to know what your rx8 needs, it will be easy. My routine every single time before I shut the engine off was redlining for couple of seconds and maintain it to 4k rpm, then shut it off just to preserve the engine from flooding. And because of this, my car is still running very well. The only problem I had with this car is the cost of maintenance. It burns a hole in my pocket so I had to learn DIYs to survive college. I saved almost $2000 on repairs and maintenance costs at the mechanic just from learning things online (changing ignition coils, plug wires, spark plugs, heater console problem, and even deflooding procedure) and I got it from rx8 forums and google. So if you're saying it is a bad car well you are wrong. Rotary could actually be reliable and last till 250k miles in my opinion. To those who had a lot of issues with it in my opinion are just either unlucky who got lemons OR are just a bunch of ignorants who treat rotary cars the same as other cars. Before you buy any used rx8, read up the rx8 forums they have a guide on buying used rx8s out there. It does have its pros and cons but I love my rx8. I traveled the whole east coast and southern parts with it and had no major issue other than the Maine trip. I just wish I could have manual version though. Pro tip of choosing an RX8: Choose a used rx8 with great maintenance record. And STOCK too. Never buy a car with check engine light on unless you know what are the codes are (I had CEL lights on when I first bought my rx8 but it was just telling me the secondary pump injector was faulty) so I knew it won't affect my engine so I bought it anyways.
Fair review for the last Rotary
Manual 4dr Coupe (1.3L 2rtr 6M)
The RX8 is a true 4 door 4 seat sports cars, what it lacks in low end torque it makes up for in handling. Rotary motor propels the 3100lb RX8 to 60 in 6.0 sec. and a ¼ mile in 14.9. Fuel consumption for the RX8 was Avg for when it first came out, 17city/24 Hwy. The cars light weight stiff chassis and electronic steering makes this a point and drive sports car allowing even the novice of sports car owners the ability to get behind the wheel and take the turns like a pro. This car does come at a price requiring you to add oil about ever 4 fill up’s. This is a good daily driver for hwy only commuters
Manual 4dr Coupe (1.3L 2rtr 6M)
The rotary is an amazing engine but different from regular piston engines & should be treated w/ that in mind. Many of these bad reviews stem from individuals who havent researched or properly cared for it. There are a few minor issues & if you RESEARCH it you will easily find ways to avoid those- not to mention 10 yr/100k mi warranty on the engine core components is a nice bonus should it be necessary. A rotary engine needs time to warm up. Turning the engine off while its still cold will flood it. There are reviews of people complaining about this but you can easily avoid it by letting it run for a minute or 2 Thanks to researching the RX8 first, I've never had an issue.

Features & Specs

See all Used 2004 Mazda RX-8 Coupe features & specs


NHTSA Overall Rating

The National Highway Transportation Safety Administration offers independent analysis.
  • Frontal Barrier Crash Rating
    OverallNot Rated
    Driver4 / 5
    Passenger5 / 5
  • Side Crash Rating
    OverallNot Rated
  • Side Barrier Rating
    OverallNot Rated
    Driver4 / 5
    Passenger4 / 5
  • Combined Side Barrier & Pole Ratings
    Front SeatNot Rated
    Back SeatNot Rated
  • Rollover
    Rollover5 / 5
    Dynamic Test ResultNo Tip
    Risk Of RolloverNot Rated

More about the 2004 Mazda RX-8
More About This Model

The product flow from today's automakers has reached a fever pitch. Where you once had three big players and a handful of secondary car companies competing for the American customer's attention, you now have at least 10 large-scale producers and another 30 manufacturers (depending on how you want to group them together) all pumping product into new car showrooms. And not the same old product, either. With the exception of few tired vehicle designs (Chevrolet Cavalier or Acura NSX anyone?), the majority of cars and trucks for sale in the U.S. today have undergone at least one major redesign in the last five years.

What this means to the consumer is an unprecedented amount of fresh, high-quality vehicles from which to choose. What this means to the automakers is that it's never been tougher to create a truly distinct, innovative and overall compelling design that effectively breaks from the pack.

Mazda is well aware of this need to rise above the growing product noise. The company has touted the virtues of driving passion for decades, and when it released the Miata MX-5 in 1990, followed by the redesigned RX-7 in 1993 (not to mention an overall win at Le Mans in 1991), it seemed the company was serious about having fun product. Then came the mid-'90s and a string of not-so-fun vehicles (along with the departure of the RX-7 from American showrooms). Mazda officials now admit to losing their focus during this period. They were trying to build cars for everyone instead of remaining true to the manufacturer's core beliefs.

Zoom-zoom forward to late 2002 and what you'll find is a company in full renaissance mode. The Mazda folks tell us that the plan to reinvent their company, called the "Millennium Plan," began in 1999. The Mazda 6 was the first car to be developed under this new (actually, make that newly rediscovered) philosophy of driving passion. The non-U.S. market Demio model was the second step in the process, while the car presented here, the 2004 RX-8, is the third and, according to company officials, most important.

It would be easy to simply think of the RX-8 as the latest version of Mazda's halo car — an heir to the sports car throne left vacant since the last U.S.-spec RX-7 was sold here almost a decade ago. While the RX-8 will be all of those things, its redesigned rotary engine, reverse-opening rear doors and room for four adults make it far more.

Remember, there's an almost deafening automotive din to escape.

Pulling the RX-8 out of that cacophony starts under the car's sloping hood where an all-new rotary engine resides. Mazda remains the one and only automaker willing to invest the resources necessary to develop and sell a rotary engine in a production car. You might remember that it was increasingly stringent emissions standards (along with poor sales) that killed Mazda's last rotary engine in the U.S. This new power plant, dubbed the Renesis (for rotary engine and genesis), addresses not only emission requirements but also power, efficiency and weight concerns — all key sports car elements.

The most important Renesis change relates to the location of the intake and exhaust ports. Because a rotary engine has no valve train, the location of these ports is crucial to the engine's performance. In the previous engine, these ports were located on the outer edge of the rotary housing, but in Renesis they are on the side of the rotary chamber. Unlike the previous design, this location allows engineers to completely close the exhaust port before the intake port opens, and vice versa. It also allows them to use 30 percent larger intake ports than before, along with a variable intake system that optimizes air flow.

What this design means to the consumer is better fuel efficiency and increased performance. Mazda estimates the RX-8 will get 20 percent better mileage in the city than the RX-7 did. Exact figures are yet to be determined, but current estimates put the engine at 18-19 mpg in the city and 23-24 mpg on the highway. The new design also means far less emissions (the previous rotary's major bugaboo) because the Renesis allows unburned hydrocarbons to be sent back into the engine and ignited again. Despite the reduction in exhaust gasses and increase in fuel mileage, the new engine will produce 250 peak horsepower and 160 peak pound-feet of torque while offering a redline of 9,000 rpm. Those figures are for the "high-power" rotary that is mated to a six-speed manual transmission, but Mazda told us a 210-horsepower version of the Renesis, mated to a five-speed automatic, would come on line a few months after the RX-8 hits U.S. showrooms in summer 2003.

These numbers may seem disappointing at first (the old twin-turbo RX-7's rotary made 255 peak horsepower and 217 pound-feet of twist while offering an 8,000 rpm redline), but keep in mind that the new engine is not turbocharged…at least not yet. Questions about the possibility of one day turbocharging the Renesis were given casual dismissal by Mazda representatives, but it's obvious any company capable of making a rotary work in the 21st century could certainly make it work with forced induction.

In the meantime, the lack of a turbo, and all its associated plumbing, gives the Renesis an 80-pound weight advantage over the previous RX-7's engine. That weight advantage, combined with this rotary's smaller size (approximately two-thirds the size of a comparable inline four cylinder) also allows the engine to be mounted further back and lower than it was in the turbo-topped RX-7. The result is a 50/50-weight balance between each set of wheels, a low center of gravity and a low hoodline that contributes to the car's sporty style and 0.3 coefficient of drag. Total vehicle weight was not disclosed during our advanced drive of the RX-8, but Mazda officials told us it should undercut the new 350Z by around 250 pounds, which should largely negate that car's 37-horsepower advantage.

Cradling this high-tech drivetrain is an all-new chassis and suspension that uses a double-wishbone system up front and a multilink design for the rear wheels. Mazda's goal was to provide the handling characteristics of the RX-7 with the fine ride quality and road noise isolation of a premium sedan. The company also wanted to meet current and future safety standards. High-strength crossmembers are strategically located in the engine compartment and along the frame's primary backbone to add chassis stiffness, enhance suspension tuning and improve crash protection. According to Mazda, the RX-8 has already received excellent safety scores in U.S., European and Japanese crash testing, including an upcoming test standard, due in approximately 2005, for rear-impact protection. Items like seat-mounted side airbags, head curtain airbags and crushable pedals contribute to passenger protection, as do "built-in" B-pillars within the reverse-opening rear doors. Much like traditional B-pillars, these beams dissipate side-impact crash energy and contribute to body rigidity.

It's these reverse-opening rear doors that differentiate the RX-8 from other sports cars (as much or more than the rotary engine under its hood). The idea of a "four-door sports car" has been bandied about for decades, but Mazda's efforts are likely to set a new benchmark in this area. The key is the near seamless integration of these rear doors into an otherwise lithe and lean vehicle. With the exception of its slightly elongated wheelbase and subtly truncated rear window angle, there is little indication that the RX-8 is anything other than a dedicated supercar. Casual observers will likely notice neither characteristic and simply wonder how fast this sexy, low-slung machine is.

When said observers learn that the RX-8 will hold four full-size adults comfortably, they will further appreciate the car's exterior shape. Similar to the design of Saturn's new Ion coupe, or any noncrew-cab four-door truck, the RX-8's rear doors open only after the front doors are released, and they must be closed before the fronts are shut. Amazingly, a full-size adult can be situated in the front driver or passenger seat while another full-size adult hops in back (no front-seat sliding required). That same full-size adult will fit comfortably in either of the rear seats, which are just as heavily bolstered and supportive as the front chairs. That's not to say that the interior feels large or roomy. The RX-8's designers told us they wanted the cabin to fit four comfortably while still having a "cozy" feel. Put four adults in the RX-8 and the word cozy will certainly apply.

From the driver seat the RX-8 offers an attractive combination of design cues and logical control placement. The seats are low and heavily bolstered with contrasting inserts that match the exterior color (this same contrasting color is also found on the steering wheel rim). The gauge cluster uses three pods, with the larger central pod housing a tachometer and a digital speedometer. Fuel level and engine temperature information are housed in the left pod while oil pressure and the odometer/tripmeter are on the right. We liked the optitronic gauge cluster lighting that changes from white to red when the headlights are switched on, but we were disappointed that an analog speedometer was nowhere to be found. We also liked the circular theme that makes up the center stack controls, but we still aren't sold on having the radio display at the top of the center stack, which is a considerable distance from the audio controls (similar to the Mazda 6's setup). However, should you ever forget what type of engine powers the RX-8 you need only glance at the six-speed shift knob or upper seat back design to be reminded that a rotary motor sits under the hood.

Another way to confirm what the RX-8 is all about involves flogging it on a closed course. Mazda let us do just that at the company's Miyoshi Proving Grounds in Japan. Miyoshi comes fully equipped with a long straightaway, sweeping corners and fast transitions. Several of the facility's curves include midcorner bumps that test even the most advanced suspension's ability to sort things out.

After almost a dozen laps around Miyoshi, it was clear that Mazda has again mastered the art of driving passion. The RX-8 features powerful and progressive braking, sublime steering and accurate shift action. It tends to understeer slightly when driven at the limit, but it's nothing a bit of throttle can't fix. We should also note that the steering uses an electric assist system, an increasingly popular design found on such cars as the Honda S2000, BMW Z4 and the Mini Cooper.

The engine will spin to 9,000-rpm faster than you can say "rev limiter" and feels more willing at high rpm than even Honda's S2000 because of the rotary's phenomenal smoothness. Midrange torque is fully adequate and a second burst of power comes on at about 7,000 rpm, giving the RX-8 a larger "sweet zone" than that offered by Honda's roadster or the Toyota Celica GT-S.

But perhaps the Mazda's most impressive characteristic was how stable it felt during fast sweepers and through quick transitions, even when the pavement was of "Detroit quality." Driving the RX-8 at its limit took several laps simply because that limit was quite high and, when it was finally surpassed, the car proved very predictable and easy to reel back in.

Pricing for the RX-8 has yet to be announced, but we were assured by company representatives that it would be "competitive." That sounds fine, but begs the question "Competitive with what?" There is nothing like the RX-8 currently available, so when they say competitive we aren't sure where to look for pricing (which, going back to the idea of creating a unique and compelling vehicle, is great for Mazda). We'll assume that the new 350Z is among the car's potential competitors simply because Mazda's own people were quoting curb weight comparisons. The Z sells for between $26,000 and $34,000, but doesn't have a rotary engine, room for four adults or enough trunk capacity to hold two sets of golf clubs.

It's these characteristics that will distinguish the RX-8 from the mass of new product hitting showrooms in the coming year. We expect the car to appeal to a wide array of customers, including both sports car fans and family folks looking for something different.

If you fit into either (or both) of these segments, you'll want to give the latest zoom-zoom car a spin.

Used 2004 Mazda RX-8 Coupe Overview

The Used 2004 Mazda RX-8 Coupe is offered in the following styles: Automatic 4dr Coupe (1.3L 2rtr 4A), and Manual 4dr Coupe (1.3L 2rtr 6M).

What's a good price on a Used 2004 Mazda RX-8 Coupe?

Price comparisons for Used 2004 Mazda RX-8 Coupe trim styles:

  • The Used 2004 Mazda RX-8 Coupe Manual is priced between $5,995 and$5,995 with odometer readings between 93416 and93416 miles.

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Used 2004 Mazda RX-8 Coupe Listings and Inventory

There are currently 1 used and CPO 2004 Mazda RX-8 Coupes listed for sale in your area, with list prices as low as $5,995 and mileage as low as 93416 miles. Simply research the type of used car you're interested in and then select a prew-owned vehicle from our massive database to find cheap used cars for sale near you. Once you have identified a used or CPO vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the Used 2004 Mazda RX-8 Coupe.

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Should I lease or buy a 2004 Mazda RX-8?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

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