Buying blind is how you overpay. Don’t decide alone.
Send this to whoever’s advising you: your mechanic, the PPI shop, the friend who’s owned three of these.
The most affordable way into a 90s roadster, with a famously robust drivetrain. The money pit is almost never the engine. It's rust, deferred rubber, and a tired top.
Verification in progress: 0 of 7 figures verified
The cost ranges below are curated estimates. We are verifying every one against real shop invoices and owner submissions, in the open, and we label each figure’s provenance until then. Own one of these cars? Your invoice moves a number from estimated to verified.
The financial roadmap
from 6,000 mi · 12k mi/yr
What should happen, when, and what it should cost. Paste the car's service records when running a report and this adjusts for what's already done.
Year 16k → 18k mi~$2,930›
Fuel (EPA + DOE)$2,236published federal figures
Soft top and rear window replacement$475-$1,250estimate, pending verification
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Year 218k → 30k mi~$2,632›
Fuel (EPA + DOE)$2,236published federal figures
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Engine air + cabin filters$75-$185baseline schedule (typical parts + BLS labor)
Year 330k → 42k mi~$2,690›
Fuel (EPA + DOE)$2,236published federal figures
Four-wheel alignment$150-$225baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Year 442k → 54k mi~$4,145›
Fuel (EPA + DOE)$2,236published federal figures
Tires (set of four)$550-$1,325baseline schedule (typical parts + BLS labor)
Front brake pads and rotors$375-$775baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Engine air + cabin filters$75-$185baseline schedule (typical parts + BLS labor)
Year 554k → 66k mi~$4,568›
Fuel (EPA + DOE)$2,236published federal figures
Timing belt + water pump service$450-$850estimate, pending verification
Rear brake pads and rotors$365-$755baseline schedule (typical parts + BLS labor)
Transmission fluid service$230-$550baseline schedule (typical parts + BLS labor)
12V battery$165-$400baseline schedule (typical parts + BLS labor)
Coolant service$180-$315baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
Oil and filter service$85-$180baseline schedule (typical parts + BLS labor)
5-year total: ~$17,000full range $15,035-$19,615
Probability-weighted estimate, not a quote and not a substitute for a PPI. Baseline schedule items are priced from typical parts ranges and BLS labor data for a mainstream car; known failure modes carry their own provenance. Confidence: typical.
The ownership timeline
this car: 6,000 mi
When things typically happen, in miles. Click a row for the detail.
Bands are typical windows, not predictions. Steel rows are federal complaint clusters (25th-75th percentile of owner-reported failure mileage, median marked). Condition-driven items don’t appear here: inspect for those regardless.
What this chassis is known for
tap a row for the detail
Soft top and rear window replacementLikely due now$475-$1,250›
What you’ll notice: Shrunken top that fights the latches, split seams, yellowed or cracked plastic rear window, water stains on carpet.
Original tops are 20+ years old. A leaking top also feeds the rust problem above.
Parts $250-$650 · Labor 1.5-4h ($225-$600 @ $150/hr) · Advanced DIY
Typical window: 15-35 years of age
Source: Age-driven consumable; Miata.net top-replacement guides · estimate, pending verification
Rust in rocker panels and frame railsdeal-shaperInspect for it$800-$3,500›
What you’ll notice: Bubbling paint low on the sills, crusty metal behind the plastic sill covers, damp carpets after rain.
Soft-top drains clog and dump water into the sills. Rot hides behind plastic sill covers, so a shiny car can still be structurally crusty underneath. This is the #1 Miata deal-breaker.
Parts $200-$800 · Labor 4-18h ($600-$2,700 @ $150/hr) · Shop job
Condition-driven: inspect, don't assume · cost applies only if found (excluded from headline budget)
Source: Miata.net community consensus; universal PPI guidance for NA/NB · estimate, pending verification
Short-nose crank keyway wear (1990-91 1.6L)deal-shaperInspect for it$550-$2,550›
What you’ll notice: Crank pulley wobbles visibly at idle; ticking from the front of the engine.
Early 1.6 cranks have a shorter snout; a loose crank bolt lets the keyway wallow out. A wobbling crank pulley on an early car can mean a new crank or engine.
Parts $100-$900 · Labor 3-11h ($450-$1,650 @ $150/hr) · Shop job
Condition-driven: inspect, don't assume · cost applies only if found (excluded from headline budget)
Source: Miata.net 'short nose crank' documentation (1.6L 1990-91 only) · estimate, pending verification
Timing belt + water pump serviceDown the road$450-$850›
What you’ll notice: No symptom until it fails. This is interval maintenance. No receipts means it's due.
60k-mile interval on the B-series engine. Sellers routinely can't prove it was done; if there's no receipt, assume it's due. Usually bundled with cam/crank seals and accessory belts.
Parts $150-$325 · Labor 2-3.5h ($300-$525 @ $150/hr) · Weekend DIY
Typical window: 60k-90k miles
Source: Mazda factory service interval; Miata.net DIY guides · estimate, pending verification
Shocks, springs, and bushings past their lifeDown the road$700-$1,650›
What you’ll notice: Floaty ride, clunks over bumps, uneven tire wear, original-dated dampers.
Most survivors ride on original or worn-out cheap dampers. A full refresh transforms the car and is the most commonly needed big-ticket item after rust.
Parts $400-$900 · Labor 2-5h ($300-$750 @ $150/hr) · Weekend DIY
Typical window: 90k-150k miles
Source: Community consensus; age/mileage-driven wear item · estimate, pending verification
Clutch slave / master cylinderDown the road$135-$420›
What you’ll notice: Soft or sinking clutch pedal, slow pedal return, fluid weeping at the slave.
The slave cylinder is a known consumable. Cheap part, common failure, often deferred by sellers.
Parts $60-$120 · Labor 0.5-2h ($75-$300 @ $150/hr) · Easy DIY
Typical window: 80k-130k miles
Source: Miata.net common-failures lists · estimate, pending verification
Valve cover gasket & cam angle sensor O-ring leaksDown the road$65-$255›
What you’ll notice: Oil seepage down the back of the engine, faint burning-oil smell after driving.
Classic B-series seepage points. Cheap fixes, but oil on the exhaust manifold smokes and scares buyers. Good bargaining material more than a real problem.
Parts $20-$60 · Labor 0.3-1.3h ($45-$195 @ $150/hr) · Easy DIY
Typical window: 70k-120k miles
Source: Miata.net common-failures lists · estimate, pending verification
PPI checklist
Hand this to your inspector. It's specific to this chassis.
- 01Pull the plastic sill covers (or use a borescope through the jack points). Check rocker panels and frame rails for rot, filler, or fresh undercoating
- 02Open the trunk, lift the carpet, and check the battery tray and rear frame rails for rust
- 03On 1990-91 1.6 cars: watch the crank pulley at idle for wobble (short-nose crank check)
- 04Ask for timing belt + water pump receipts; if none, price the job into your offer
- 05Check clutch pedal for softness or slow return (slave/master cylinder)
- 06Inspect soft top seams, rear window clarity, and carpets/floors for water staining
- 07Bounce-test each corner and look for original-dated shocks. Assume a suspension refresh if unverified
- 08Verify the hardtop (if included) latches properly. Tops and hardware carry real value
Ask the seller
- ·Has it ever been hit or had rust repair? Can I see photos of the sills and frame rails?
- ·When was the timing belt and water pump last done? Are there receipts?
- ·Has the soft top or rear window been replaced?
- ·Garage kept or outside? Any history in a salt-belt state?
What owners reported to NHTSA
32 owner complaints and 1 recalls on file for the 1996 MAZDA MIATA (public federal data). Failure mileages come from odometer readings owners filed with NHTSA.
failures cluster 53k-125k mi · median 78k (n=11)
1 recall. Verify completion with a VIN check
- 06E026000 · EXTERIOR LIGHTING
CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE D
30 manufacturer service bulletins on file with NHTSA for this model year.
EQUIPMENT (9) · ELECTRICAL SYSTEM (7) · STRUCTURE (6) · AIR BAGS (2)
Own one of these?
Tell us what a job actually cost you. Submissions are reviewed and folded into the report as owner-reported data. Never auto-published. Have the actual invoice? Upload it here (that’s the gold standard).