Caterham Unknown (2018)
2018 Caterham Unknown
CarHunch analysed 243 real MOT records for the 2018 Caterham Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
What to check before buying a 2018 Caterham 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 Caterham 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 (100%) | 242 | 75.1% | 0.33 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2018 Caterham 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 Caterham Unknown vehicles fall between 1,908 and 7,145 miles.
2018 Caterham Unknown — Still on the Road
Strong survival — 145 vehicles still getting MOTs in 2025, 91% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Most Common MOT Issues — 2018 Caterham 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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14.6%
Nearside Rear Tyre worn close to legal limit/worn on edge
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13.4%
Exhaust Lambda reading after 2nd fast idle outside specified limits
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12.8%
Offside Rear Tyre worn close to legal limit/worn on edge
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11.6%
COVID-19 6 MONTH EXTENSION
-
10%
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits
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9.4%
Nearside Front Wheel bearing has slight play
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9.4%
Nearside Front Tyre worn close to legal limit/worn on edge
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9.1%
Offside Front Tyre worn close to legal limit/worn on edge
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific Caterham Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.