1978 Triumph T140v — MOT History by Age
How cars manufactured in 1978 perform at MOT as they age
Data from official DVSA MOT testing records
Insufficient data for same-age comparison.
How This Car Ages
Pass rate progression for the 1978 Triumph T140v as it ages.
Bar chart showing pass rate by car age from 31 to 39 years
📊 View as table
| Age | Pass Rate | Tests |
|---|---|---|
| 31 yrs | 88.1% | 42 |
| 32 yrs | 85.4% | 41 |
| 33 yrs | 84.4% | 45 |
| 34 yrs | 84.2% | 38 |
| 35 yrs | 100.0% | 33 |
| 36 yrs | 88.4% | 43 |
| 37 yrs | 90.0% | 40 |
| 38 yrs | 95.1% | 41 |
| 39 yrs | 86.8% | 38 |
Pass Rate Trend
How the 1978 Triumph T140v pass rate changes as it ages, from first MOT to most recent.
Trend shows declining over 9 years
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| Built | Pass Rate | Tests |
|---|---|---|
| 2017 (39 yrs) | 86.8% | 38 |
| 2016 (38 yrs) | 95.1% | 41 |
| 2015 (37 yrs) | 90% | 40 |
| 2014 (36 yrs) | 88.4% | 43 |
| 2013 (35 yrs) | 100% | 33 |
| 2012 (34 yrs) | 84.2% | 38 |
| 2011 (33 yrs) | 84.4% | 45 |
| 2010 (32 yrs) | 85.4% | 41 |
| 2009 (31 yrs) | 88.1% | 42 |
Year-by-Year MOT Results
Common MOT Failures
Top failure categories across all test years for 1978 Triumph T140v, with age trends.
How Failures Change With Age
Comparing failure rates between the youngest and oldest test years.
| Category | At Youngest | At Oldest | Change | Trend |
|---|---|---|---|---|
| Motorcycle brakes | 2.4% (31 yrs) | 7.9% (39 yrs) | +5.5%
| 🔴 ↑ |
| Motorcycle lighting and signalling | 7.1% (31 yrs) | 10.5% (39 yrs) | +3.4%
| 🔴 ↑ |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Triumph T140v page →
About This Data
This page shows how Triumph T140v cars manufactured in 1978 perform at MOT as they age. Data spans from 2009 to 2017, covering 361 tests. Pass rates naturally decline with age as components wear.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.