Honda Unknown (2018)
2018 Honda Unknown
CarHunch analysed 1,121 real MOT records for the 2018 Honda Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2018 Honda has a catastrophic first-time MOT pass rate of just 9.7%, compared to the UK average of 80%—an extraordinary red flag that suggests either severe data quality issues (the "UNKNOWN" designation is telling) or a fundamentally problematic cohort. Dangerous defects are rare at 0.5%, so safety-critical failures aren't the driver of these results.
The median mileage of only 5,708 miles for a six-year-old vehicle is suspiciously low and hints that this dataset may capture test vehicles, fleet cars, or vehicles with incomplete records rather than typical road-going Hondas. With just 0.03 failures and 0.2 advisories per vehicle on average, the actual mechanical condition appears sound, but the grotesquely low pass rate makes this cohort unreliable for real-world buying decisions—find the specific model variant instead.
What to check before buying a 2018 Honda Unknown
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Honda Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 1,115 | 9.6% | 0.03 |
| Diesel (0%) | 3 | 0% | 0 |
| Other (0%) | 2 | 100% | 0 |
| Hybrid Electric (Clean) (0%) | 1 | 0% | 0 |
Mileage Distribution
Most 2018 Honda Unknown vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2018 Honda Unknown vehicles fall between 1,390 and 10,807 miles.
2018 Honda Unknown — Still on the Road
45 vehicles still getting MOTs in 2025 — 78% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2020–2025.
MOT History Averages
Most Common MOT Issues — 2018 Honda Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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34.9%
COVID-19 6 MONTH EXTENSION
-
7.3%
Front Brake pad(s) close to minimum limit
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5.3%
Rear Tyre worn close to the legal limit
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4.3%
Nearside Front Shock absorber has a light misting of oil
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4%
Offside Front Shock absorber has a light misting of oil
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3.7%
Front Tyre worn close to the legal limit
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3.7%
Exhaust noisy
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3.7%
Drive chain slightly loose
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific Honda Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.