Autozam AZ-1: Complete Guide to the Gullwing Kei Supercar

Overview and History

The Autozam AZ-1 is a mid engine, rear wheel drive kei car with gullwing doors, a turbocharged engine, and a production run so short that fewer than 5,000 were ever built. It is the rarest and most collectible of the "ABC trio" kei sports cars, alongside the Honda Beat and Suzuki Cappuccino. Where the Beat charms with high revving character and the Cappuccino impresses with tuning potential, the AZ-1 stops people in their tracks. Gullwing doors on a car shorter than a Smart ForTwo will do that.

The AZ-1's origin story is unusual. Suzuki designed the car in 1985 as the "RS-3" concept, debuting it at the 1987 Tokyo Motor Show. Suzuki then shelved the project to focus on the Cappuccino. Mazda took interest, licensed the design, and assigned the project to a team led by Toshihiko Hirai, the same engineer who led development of the Mazda MX-5 Miata. The car appeared at the 1989 Tokyo Motor Show as the "AZ-550" in three body styles. Mazda executives chose the gullwing coupe for production.

Autozam was one of Mazda's five sales channels during Japan's bubble economy era, and the AZ-1 was sold exclusively through Autozam dealers. Production ran from October 1992 to October 1994. The car launched at 1.498 million yen (approximately $12,400 at the time), slightly more expensive than both the Beat and Cappuccino, and more expensive than a first generation Miata. Japan's economic bubble had already burst, and Mazda's target of 800 units per month was never met. Total production reached approximately 4,392 AZ-1 units plus 531 Suzuki Cara rebadges, for a combined total under 5,000 cars worldwide.

That scarcity, combined with the gullwing doors and mid engine layout, has made the AZ-1 one of the most sought after kei cars on the collector market. All production years have cleared the 25 year import rule, and every car that crosses the Pacific commands serious money. If you are new to kei vehicles, our beginner's guide covers the regulations that created cars like this.

Specifications

The AZ-1 uses Suzuki's F6A turbocharged three cylinder, the same basic engine found in the Suzuki Carry and first generation Cappuccino. Mounted behind the seats in a transverse mid engine configuration with an IHI RHB31 turbocharger, it drives the rear wheels through a 5 speed manual gearbox. No automatic was ever offered.

• Engine: 657cc Suzuki F6A, DOHC, 4 valves per cylinder, turbocharged and intercooled
• Turbocharger: IHI RHB31, 0.88 bar (12.76 psi) boost
• Power: 63 hp (64 PS) at 6,500 RPM
• Torque: 63 lb-ft (85 Nm) at 4,000 RPM
• Compression ratio: 8.3:1
• Redline: 9,000 RPM
• Transmission: 5 speed manual (only option)
• Drivetrain: Mid engine, rear wheel drive
• Final drive: 4.705
• Curb weight: 1,587 lbs (720 kg)
• Wheelbase: 88.0 inches (2,235 mm)
• Length: 129.7 inches (3,295 mm)
• Width: 54.9 inches (1,395 mm)
• Height: 45.3 inches (1,150 mm)
• Tires: 155/65R13
• Fuel tank: 7.9 gallons (30 liters)
• Top speed: 87 mph (140 km/h, electronically limited; ungoverned approximately 110 mph)
• Fuel economy: ~35 mpg (estimated, no US EPA data)

At 1,587 lbs, the AZ-1 is the lightest of the ABC trio. The body panels are injection molded plastic (not fiberglass) mounted on a steel spaceframe, which keeps weight down while allowing complex shapes like the gullwing door openings. The extremely low roofline, just 45.3 inches, made conventional doors impractical, which is how the gullwing design became a necessity rather than a gimmick.

Variants

Standard AZ-1 (1992 to 1994): The base and most common model. Available in three colors: Classic Red, Siberia Blue, and Noble White.

Suzuki Cara (1993 to 1994): A rebadged AZ-1 sold through Suzuki dealers. The only differences: Suzuki badging and front fog lamps. "Cara" is short for "Car Amusement." Only 531 units produced, making the Cara rarer than the AZ-1 itself.

Mazdaspeed A-Spec (February 1994): Approximately 100 units. Featured FRP front bumper, sculpted hood with larger scoop, body colored lower panels, and a Ferrari F40 inspired rear wing. Available in black, white, and silver (repainted from original colors). Appearance package only; no mechanical changes. The most visually aggressive AZ-1 variant.

M2 1015 Limited (May 1994): Production numbers are uncertain (estimates range from 50 to 220 units). Featured integrated front fog lights in the hood, unique front bumper, and rear spoiler. Available in white, black, and silver. Also appearance only, same powertrain. The rarest factory variant.

Pros and Cons

Pros

• Nothing else looks like it. Gullwing doors, a roofline lower than most people's waists, and proportions that make it look like a scale model of a supercar. The AZ-1 draws crowds everywhere it goes. There is no other car on American roads that looks anything like it.
• Mid engine handling. The engine behind the seats gives the AZ-1 sharp, responsive turn in and a chassis that communicates everything the rear tires are doing. At 1,587 lbs with a mid engine layout, the power to weight ratio feels adequate despite the modest horsepower figure.
• Turbo tuning potential. The F6A turbo engine responds to the same bolt on modifications as the Cappuccino: ECU tune, boost controller, exhaust. Some Cappuccino parts are directly cross compatible.
• Collector value trajectory. The AZ-1 is a genuinely rare car. Under 5,000 exist worldwide. Values have climbed from approximately $15,000 in 2020 to $25,000 to $35,000 in 2026 and show no signs of slowing. This is an appreciating asset.
• The Miata connection. Developed by the same engineer who led the MX-5 program. That pedigree matters to enthusiasts and collectors.

Cons

• Price of entry. The AZ-1 is the most expensive kei car you can buy. Clean examples start at $20,000 and can exceed $40,000 for pristine or rare variants. You can buy three Honda Beats for the price of one good AZ-1.
• Parts scarcity is severe. Suzuki has discontinued F6A engine support. Mazda essentially pretends the AZ-1 never existed for parts purposes. Most components must be sourced from Japan, and some are simply unavailable. The Anything Wheeled community is the lifeline for parts cross referencing.
• Engine access is terrible. The mid engine packaging means oil changes require removing rear bodywork. Everything in the engine bay is difficult to reach. Budget significantly more labor time for routine maintenance compared to a front engine car.
• Gullwing door struts weaken. The original gas struts lose pressure with age. When they fail, the doors can fall on your head. Replacement struts cost approximately $100 each before shipping from Japan and should be considered a safety priority.
• Hidden rust. The steel spaceframe and floor panels use very thin sheet metal. The factory sound deadening felt acts as a sponge, trapping moisture against the floor from inside and accelerating hidden corrosion. The plastic body panels do not rust, but the structure underneath absolutely can.
• Cramped beyond belief. Even by kei car standards, the AZ-1 is claustrophobic. Taller drivers will not fit. Entry and exit through the gullwing doors requires contortion.

Common Modifications

• ECU upgrade: Suzukisport N1 and N2 ECUs are plug and play and the most common first mod. Alternatively, a Megasquirt PNP (originally designed for the Cappuccino) can be adapted. Allows boost up to 1.08 bar and removes the speed limiter.
• Exhaust: Aftermarket muffler options are catalogued on Anything Wheeled. A custom downpipe with high flow catalytic converter improves turbo response significantly.
• Boost controller: Combined with an ECU tune, safely increases boost beyond the factory 0.88 bar. Gains of 10 to 20 hp are achievable on stock internals.
• Coilovers: Aftermarket suspension lowers the car (as if it needs it) and dramatically improves handling. Some builders adapt Mazda RX-8 front suspension components.
• Gullwing door strut replacement: Not a performance mod but an essential maintenance item. Replace the gas struts before they fail and drop a door on your head. Budget $200 to $300 for a pair.
• Link ECU: For serious builds, a standalone Link ECU provides full engine management control. Required for turbo upgrade builds targeting 100+ hp.
• LED lighting: An LED headlight conversion ($40 to $80) is a safety upgrade given the AZ-1's low height and limited visibility to other drivers.

Known Issues and Maintenance Tips

• Hidden floor rust: This is the most insidious issue. The OEM sound deadening felt traps moisture against the thin steel floor panels, causing corrosion from the inside out. Pull back the carpet and felt on any AZ-1 you are considering buying. Rust here is structural and expensive to repair.
• Gullwing door strut failure: Original struts are 30+ years old and losing pressure. Test door hold open force during inspection. If the doors drift down under their own weight, replacement is urgent. Source from Japan through Nengun Performance.
• Turbo heat soak: The turbocharger is mounted in a poor location for heat management. It cooks itself and surrounding components over time. Watch for oil leaks around the turbo, and consider adding heat shielding. Let the engine idle for 30 seconds after hard driving to allow the turbo to cool before shutdown.
• Vacuum hoses and coolant lines: All rubber components harden and crack with age on 30+ year old cars. Refreshing all vacuum hoses, coolant hoses, and seals is typically the first maintenance step for new owners. Budget $200 to $400 in parts.
• Window motor failure: Electric window motors fail frequently. Source replacements early before they become unobtainable.
• Air conditioning: If the car had factory AC, it has almost certainly failed by now. Most owners abandon the system entirely rather than attempting repair.
• Oil changes: The mid engine packaging makes oil changes difficult. Most owners learn to access the drain and filter through the rear bodywork. Use quality 5W-30 synthetic and change every 3,000 miles (same turbo maintenance schedule as the Cappuccino).

Parts cross compatibility with the Suzuki Cappuccino and Suzuki Alto Works is a lifeline. The shared F6A engine means many engine components are interchangeable. Use Megazip parts diagrams to identify correct part numbers.

Price Guide

The AZ-1 is the collector's choice and the most expensive kei car on the market. Scarcity drives pricing. Track current market values on Classic.com and recent auction results on Bring a Trailer and Cars and Bids.

• Standard AZ-1 (driver condition): $20,000 to $25,000
• Standard AZ-1 (clean, low mileage): $25,000 to $35,000
• Pristine or fully sorted examples: $35,000 to $40,000+
• Suzuki Cara (531 produced): Similar pricing to AZ-1, slight premium for rarity
• Mazdaspeed A-Spec (~100 produced): Significant premium, $40,000+ when they appear
• M2 1015 Limited: Rarely seen on the market. Expect $45,000+ if one surfaces

Recent Cars and Bids sales: $20,250 for an original condition example (February 2026) and $32,250 for a modified car (October 2025). The highest recorded sale on Classic.com is $40,500.

For those importing directly from Japan, expect $17,000 to $21,000 at auction plus $2,000 to $4,000 shipping, 2.5% customs duty, and state registration fees. See our complete import guide for the full breakdown.

Insurance

Hagerty is the clear choice for insuring an AZ-1. Their agreed value policies are essential for a car that is actively appreciating. Insure for the replacement value, not the purchase price. Getting a standard carrier to write a policy on a 30 year old Japanese car with gullwing doors is an exercise in frustration. Go straight to a specialty insurer.

For a full breakdown of costs, providers, and policy types, see our kei vehicle insurance guide.

Where to Buy

The AZ-1 is not a car you casually shop for. Inventory is thin and moves fast.

• Specialist importers: Japanese Classics and Duncan Imports occasionally stock AZ-1s, but they sell within days of listing. Set up alerts.
• Auction sites: Cars and Bids and Bring a Trailer are the most common US venues for AZ-1 sales.
• Direct Japan import: Browse Goo-net Exchange or JDM Buy Sell for Japanese auction listings. Search for chassis code PG6SA.
• Community: The Anything Wheeled community and the Mazda Autozam AZ-1 Fan Club on Facebook are where private sales happen.

Browse our dealer directory to find kei vehicle importers near you.

When buying an AZ-1, the inspection priority list is: floor rust (pull back carpet and felt), gullwing strut condition, turbo health (listen for bearing whine, check for shaft play), and overall structural integrity of the steel frame. See our pre purchase checklist for detailed guidance.

Frequently Asked Questions