Triumph Unknown (2020)
2020 Triumph Unknown
CarHunch analysed 169 real MOT records for the 2020 Triumph Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2020 Triumph is a serious red flag—only 13.9% pass first time, nearly six times worse than the UK average of 80%. The zero dangerous defects on record is the only bright spot, but the catastrophically low pass rate suggests systemic issues with this model.
These vehicles are running at just 4,831 miles on average, so they're barely broken in, yet they're already failing MOT at a staggering rate. With almost no recorded failures or advisories per vehicle, the problem isn't wear-and-tear—it points to design or build defects that emerge early. If you're considering one, get a pre-purchase inspection from a Triumph specialist before committing, and factor in the likelihood of repeated MOT failures.
What to check before buying a 2020 Triumph 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 Triumph Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2020 Triumph 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 2020 Triumph Unknown vehicles fall between 3,192 and 7,089 miles.
2020 Triumph Unknown — Still on the Road
12 vehicles still getting MOTs in 2025 — 71% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.
MOT History Averages
Most Common MOT Issues — 2020 Triumph 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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25%
Front Tyre worn close to the legal limit
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20.8%
Rear Tyre worn close to the legal limit
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16.7%
Exhaust noisy
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12.5%
Front Brake binding but not excessively
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8.3%
Wheel alignment slightly misaligned
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8.3%
Nearside Front Brake disc worn, but not excessively
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8.3%
Roller brake test The less effective brake control does not achieve an efficiency of 25%
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8.3%
Offside Front Shock absorber has a light misting of oil
Data covers a 3-year window centred on 2020. Counts include advisories and failures.
Found a specific Triumph Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.