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MAZDA RX-8 (2006)

Running costs, reliability data, and common problems from 999 real MOT tests.

Annual Cost

£2,577

£215/month

MOT Pass Rate

76%

Average

Road Tax

£430

Based on CC/year

Insurance

Grp 30-42

2616cc Petrol

Check Carefully

76% pass rate, £2577/year to run. 6 points below average.

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Petrol2616cc20 years old999 tests66k miles avg

Annual Running Costs

Fuel (Petrol, 2616cc)

~30 mpg

£1,592
Road Tax

Based on 2616cc

£430
MOT Test
£55
Predicted Repairs
£500
Total per year£2,577
Per month£215/mo
Per week£50/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

76% MOT pass rate(Average)
0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 6 points below the national average of 82%. It falls below the MAZDA brand average of 81%.

At 20 years old, 76% of MAZDA RX-8s from 2006 passed their MOT first time in 2026. That's based on 999 tests across the UK. The average mileage at this age is 66,411 miles.

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How Does It Compare?

Rank among 2006 cars248th of 575(top 43%)
Rank among MAZDA models289th of 483(top 60%)
vs national average-6%(82% avg)
vs 2006 cars average+3%(73% avg)
vs MAZDA average-5%(81% avg)

Mileage Analysis

66,411

Average miles

vs

148,000

Expected for age

The average 2006 MAZDA RX-8 has 66,411 miles on the clock, which is significantly below the expected 148,000 miles for a 20-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2010 model with a 85% MOT pass rate, while the 2004 model has the lowest at 73%. The 2006 sits between the two at 76%.

MAZDA RX-8 by Year

YearPass RateTestsAvg Mileage
201085%16963,729 mi
200981%53066,357 mi
200875%81666,277 mi
200777%1,08364,619 mi
200676%99966,411 mi
200574%68266,967 mi
200473%91468,061 mi
200382%16970,074 mi

Similar Cars to Consider

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About the 2006 MAZDA RX-8

The 2006 MAZDA RX-8 is a large car with a 2616cc petrol engine. 999 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2006, the average MOT pass rate is 73%, and this model beats that benchmark.

With an average of 66,411 miles at 20 years old, MAZDA RX-8 owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

2006 MAZDA RX-8 Fuel Costs

The 2616cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2006 MAZDA RX-8?

Total estimated annual running cost is £2,577 215/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 76% pass rate. Keeping on top of servicing will help avoid surprises.

MAZDA RX-8 Reliability Trend

Newer MAZDA RX-8s show better MOT pass rates than older ones, with an average improvement of 3 percentage points.

Buying a Used 2006 MAZDA RX-8

At 20 years old, the MAZDA RX-8 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2010 model has the highest pass rate at 85%.

Common Issues to Watch For

Based on the 2006 MAZDA RX-8's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 20 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2006 MAZDA RX-8 stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
MAZDA RX-8(2006)76%£1592£430Grp 30-42£2577
AUDI TT(2007)80%£1592£250Grp 25-38£2247-£330
SAAB 9-3(2007)76%£1592£250Grp 30-42£2397-£180
LAND ROVER RANGE ROVER SPORT(2008)82%£1592£250Grp 30-42£2247-£330
MERCEDES E(2005)78%£1592£250Grp 30-42£2397-£180

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.

Related Mazda Models

Explore other Mazda cars or similar models in the same category.

Related Guides

In-depth articles relevant to the Mazda Rx-8.

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