Chassis Code Explained
| Segment | Meaning | Detail |
|---|---|---|
| N | Model series | N — Roadster/MX-5 series designation |
| C | Generation | C — third generation (2005–2015) |
NC introduced the 1.8L and 2.0L MZR engines and the optional Power Retractable Hardtop (PRHT); it was the first generation built on a platform not shared with the NA/NB.
Editorial notes
Key Takeaways
The Roadster has run through four generations since 1989 and the recipe hasn't really changed. Small, light, front engine, rear wheel drive, two seats, soft top. The NA is the pop-up headlight original. The NB is the most varied by trim. The NC is the heaviest and the most underrated. The ND is current production and brings the weight back down to where it started.
- Launched in Japan on August 25, 2005 with a newly developed 2.0-liter MZR engine rated 170PS (125kW) at 6,700rpm on manual-transmission cars (166PS for the automatic), per Mazda's own press release
- Won the Japan Car of the Year Award for 2005-2006
- Power Retractable Hard Top joined the lineup in August 2006; the December 2008 facelift brought a newly forged crankshaft and a rev limit raised from 7,000 to 7,500rpm (manual-transmission grades)
- JDM trims at launch were Roadster, RS, and VS, plus a 500-unit ‘Third Generation Limited’ edition, per Mazda's launch release
- No NC is old enough to import into the US yet — the 25-year age condition in 49 CFR 591.5(i)(1) isn't met until 2030 at the earliest
Technical Specifications
Every Roadster runs a naturally aspirated four cylinder. The NA uses the 1.6 liter B6 and later the 1.8 liter BP. The NB keeps the BP family and adds two factory turbo specials, the Mazdaspeed MX-5 and the MX-5 SP. The NC moves to the MZR 1.8 and 2.0. The ND runs SkyActiv-G 1.5 and 2.0. The manual gearbox is the right gearbox in every generation.
Engine Options
| Chassis | Engine | Displacement | Power — JDM | Notes |
|---|---|---|---|---|
| NC | MZR L8-DE / LF-DE | 1.8L / 2.0L | Not specified for either MZR option | 2005-2015; 4-cylinder; replaced BP family |
Transmission Options
| Type | Ratios | Availability | Notes |
|---|---|---|---|
| 5-speed manual | Not cited | NA and NB standard; NC base | Standard transmission across NA/NB; NC base spec |
| 6-speed manual | Not cited | NB special editions (10th Anniversary, Mazdaspeed, MX-5 SP); NC optional; ND | 6-speed manual was special-edition only on NB |
| 4-speed automatic | Not cited | NA and NB optional | Older automatic offered alongside 5MT |
| 6-speed automatic with paddle shifters | Not cited | NB special spec onward; NC option | Paddle-shifter 6-speed auto added on NB |
Livability
- Headroom
- Limited with the top up; comfortable with top down
- Driver and passenger seating only; cabin is small by design
- Rear Seats
- None
- Two-seat configuration across all four generations
- Cargo
- Small trunk; varies slightly by generation
- The Roadster is not a grocery-run car with a passenger aboard
Variants & Trims
JDM Roadsters got special editions the export Miata never saw. The NA gave you V-Special, S-Limited, and M-Edition with tan interiors and BBS wheels on some cars. The NB is where it gets interesting with the 10th Anniversary, the Mazdaspeed MX-5, the low-volume MX-5 SP, and the rarer-still Club Sport. Exact production numbers for both aren't independently verified. If you can find a documented one, that's the Roadster to buy.
| Generation | Trim | Engine | Key Features |
|---|---|---|---|
| NC (2005-2015) | MX-5 / Roadster 1.8 / 2.0 | 1.8L MZR / 2.0L MZR NA | 5-speed manual, 6-speed manual, or 6-speed auto with paddles; PRHT power retractable hardtop offered |
| NC (2005-2015) | MX-5 MS-R (Motor Sport Racing) | 2.0L MZR NA | 5-speed manual, Koni shocks, LSD, race sway bars, front shock-tower brace, 4-wheel discs |
| NC (2005-2015) | 20th Anniversary | 2.0L MZR NA | Recaro buckets, leather steering wheel and parking brake handle, aluminum wheels |
| NC (2005-2015) | 25th Anniversary | 2.0L MZR NA | 1,099 units; multicoloured stitched seats, chrome accents, 25th Anniversary badging |
Should You Buy a Mazda Roadster (Eunos Roadster / MX-5) NC?
The Roadster gives you a lot for not much money and asks for very little back. It's cheap to buy, cheap to run, and easy to work on. What you give up is space, big factory power, and any real weather protection. That trade has been the same Roadster trade since 1989.
Why You'll Love It
- Japan Car of the Year, 2005-2006 Mazda's own press release says the all-new Roadster, launched in Japan in August 2005, won the Japan Car of the Year Award for 2005-2006.
- Forged crankshaft and a higher rev limit from the 2008 facelift Mazda's December 2008 press release says the freshened Roadster's 2.0-liter DOHC engine features a newly forged crankshaft for extra strength, with peak output now generated at 7,000rpm (up from 6,700rpm) and the rev limit raised from 7,000 to 7,500rpm on manual-transmission grades.
- Power Retractable Hard Top option (added 2006) Mazda's August 2006 release added the Power Retractable Hard Top (RHT) to the lineup; by the December 2008 facelift it was offered as S RHT, RS RHT, and VS RHT trims alongside the soft-top S, NR-A, and RS.
Why You Might Not
- Not yet old enough to import into the US The 25-year age condition in 49 CFR 591.5(i)(1) is measured from the individual car's manufacture date; since Mazda's own release places the JDM launch in August 2005, the earliest NC won't clear that condition until 2030.
- Confirm engine tune and trim before comparing prices Mazda changed the engine's peak-output rpm and rev limit on manual-transmission grades between the August 2005 launch and the December 2008 facelift, and offered soft-top and Power Retractable Hard Top versions of overlapping trim names (RS vs. RS RHT) — confirm which spec an individual car carries.
Who Should NOT Buy This
- Buyers hoping to import an NC into the US right now under the 25-year exemption — no NC clears that condition until 2030 at the earliest
- Buyers who haven't confirmed whether a car is pre- or post-facelift (before or after December 2008), since Mazda changed the engine's peak-output point and rev limit on manual-transmission grades between them
- Buyers who assume ‘RS’ and ‘RS RHT’ are the same trim without checking which one a specific car is
Differences between JDM & USDM
Mazda's own August 2005 Japan launch release names three JDM trims — Roadster, RS, and VS — plus a 500-unit ‘Third Generation Limited’ edition, sold through Mazda and Mazda Anfini dealers with a 2.0-liter MZR engine rated 170PS (125kW) at 6,700rpm on manual-transmission cars (166PS for the automatic). The Power Retractable Hard Top (added August 2006) was offered through the facelift lineup as S RHT, RS RHT, and VS RHT alongside the soft-top S, NR-A, and RS trims, plus a newly forged crankshaft and a rev limit raised from 7,000 to 7,500rpm on manual-transmission grades. These sources describe the Japanese-market car specifically; confirm an individual import's trim and facelift status rather than assuming it matches another market's spec.
Pre-Purchase Inspection Checklist
Walk this list with the seller, not in front of them. The Critical items mean walking away if there's no paperwork. The High items can usually be priced into the deal. A short test drive and ten minutes under the car will tell you most of what you need to know.
Critical Priority
Medium Priority
Generation History
NC Mazda Roadster (2005-2015)
- Electronically retractable hardtop (PRHT) introduced
- 1.8L MZR and 2.0L MZR engines; 5MT, 6MT, or 6AT with paddles
- 2006 widebody facelift over the wheel arches
- 2008 facelift: new headlights, bumper, chrome exhaust tip
- Special editions: MS-R race-prepared, 20th Anniversary, 25th Anniversary (1,099 units)
Market Data
JDM Roadsters got special editions the export Miata never saw. The NA gave you V-Special, S-Limited, and M-Edition with tan interiors and BBS wheels on some cars. The NB is where it gets interesting with the 10th Anniversary, the Mazdaspeed MX-5, the low-volume MX-5 SP, and the rarer-still Club Sport. Exact production numbers for both aren't independently verified. If you can find a documented one, that's the Roadster to buy.
Production Numbers & Rarity
| Generation | Years | Total Built | Notes |
|---|---|---|---|
| NC | 2005-2015 | approximately 250,000 | Approximately 250,000 built (2006-2015) |
Rarest variant: Third Generation Limited — Mazda's August 2005 Japan launch release caps this edition at 500 units, alongside the standard Roadster, RS, and VS trims.
How It Compares
Among lightweight Japanese roadsters, the Roadster is the cheapest to buy, the easiest to fix, and the one with the most aftermarket. The S2000 has more power. The MR2 has the more exotic layout. The Roadster wins on reliability, parts, and the size of the community behind it.
| Feature | NC | Toyota MR2 (SW20) | Honda S2000 |
|---|---|---|---|
| Layout | FR, 2-seat, convertible | MR, 2-seat, T-top / coupe | FR, 2-seat, convertible / coupe |
| Engine layout | Inline-4 NA (B6/BP/MZR/SkyActiv-G) | Inline-4 NA or turbo | Inline-4 NA high-revving (F20C/F22C) |
| Curb weight | ~2,300 lb (NA/NB) | Heavier mid-engine package | ~2,800 lb |
| Stock power | ~100-200 hp factory range | ~200-245 hp on turbo SW20 | 240+ hp on AP1/AP2 |
| Roof | Soft top / hardtop / PRHT / RF | T-top or coupe (no convertible factory) | Soft top throughout |
| Reputation | Highly reliable, project-friendly | Reliable; mid-engine adds complexity | Reliable; high-rpm engine demands care |
| Production span | 1989-present (4 generations) | 1989-1999 (SW20 only) | 1999-2009 (single generation) |
| JDM-only specials | V-Special, S-Limited, MX-5 SP, Club Sport, NR-A | G-Limited, GT-S, Bilstein editions | Type S / Type V (JDM-only) |
Comparable Alternatives
If the Roadster isn't the right car, the Honda S2000 is the natural step up with more power and more weight. The Toyota MR2 is the mid engine alternative. If you want something smaller and stranger, the Honda Beat and Suzuki Cappuccino are kei convertibles that scratch the same itch.
Suzuki Cappuccino
Kei FR roadster — turbo three-cylinder, removable roof panels
Nissan 350Z
Larger FR sports car with more power and convertible variant
The Buyer's Read
Start with the launch facts: Mazda's own press release says the third-generation Roadster went on sale in Japan on August 25, 2005, with a newly developed 2.0-liter MZR engine rated 170PS (125kW) at 6,700rpm on manual-transmission cars (166PS for the automatic), in Roadster, RS, and VS trims plus a 500-unit Third Generation Limited edition. It won the Japan Car of the Year Award for 2005-2006.
Mazda freshened the car in December 2008: that release describes a Power Retractable Hard Top option (S RHT, RS RHT, VS RHT trims alongside the soft-top S, NR-A, and RS), a newly forged crankshaft, peak output moved to 7,000rpm, and the rev limit raised to 7,500rpm on manual-transmission grades. Confirm which side of that facelift, and which roof and trim, an individual car actually is.
No NC clears the 25-year age condition in 49 CFR 591.5(i)(1) yet — since Mazda's own release places the JDM launch in August 2005, the earliest cars won't qualify for US import until 2030. Confirm current import, EPA, and state requirements when that date approaches. Browse what's currently available across the NC range.
Frequently Asked Questions
- When did the third-generation Roadster launch, and with what engine?
- Mazda's own press release says it went on sale in Japan on August 25, 2005, with a newly developed 2.0-liter MZR engine producing 170PS (125kW) at 6,700rpm on manual-transmission cars (166PS for the automatic).
- What changed in the 2008 facelift?
- Mazda's December 2008 press release describes a Power Retractable Hard Top option, a newly forged crankshaft, peak output moved to 7,000rpm (from 6,700rpm), and the rev limit raised from 7,000 to 7,500rpm on manual-transmission grades.
- Did the NC win any awards?
- Mazda's own press release says it won the Japan Car of the Year Award for 2005-2006.
- Can I import an NC into the US yet?
- Not yet. The 25-year age condition in 49 CFR 591.5(i)(1) is measured from manufacture date; since Mazda's release places the JDM launch in August 2005, the earliest NC won't qualify until 2030. Confirm current import, EPA, and state requirements when that date approaches.
Sources & References
Sources (9)
- Eunos Roadster (Mazda Miata) — JDMBUYSELL source article — JDMBUYSELL Verified
- Mazda MX-5 — Wikipedia — Wikipedia Verified
- Eunos Roadster — Wikipedia — Wikipedia Verified
- Mazda MX-5 Miata — Car and Driver model page — Car and Driver Verified
- Mazda Miata — MotorTrend model archive — MotorTrend Verified
- Mazda MX-5 Miata — current Mazda USA model page — Mazda North America Verified
- Mazda MZR engine — Wikipedia — Wikipedia Verified
- SkyActiv Technology — Wikipedia — Wikipedia Verified
- Best-selling sports car — Guinness World Records — Guinness World Records Verified
Sources last verified: