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1971 Triumph Unclassified — MOT History by Age

How cars manufactured in 1971 perform at MOT as they age

55 years
Current Age
77.8%
Latest Pass Rate
2,475
Total Tests (All Years)
30,917 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1971 Triumph Unclassified as it ages.

38 yrs73.0%
39 yrs73.5%
40 yrs79.3%
41 yrs78.6%
42 yrs83.2%
43 yrs86.9%
44 yrs92.6%
45 yrs87.1%
46 yrs88.7%
47 yrs84.5%
48 yrs77.8%

Bar chart showing pass rate by car age from 38 to 48 years

Fail Rate %
📊 View as table
AgePass RateTests
38 yrs73.0%378
39 yrs73.5%347
40 yrs79.3%319
41 yrs78.6%299
42 yrs83.2%197
43 yrs86.9%168
44 yrs92.6%175
45 yrs87.1%224
46 yrs88.7%248
47 yrs84.5%84
48 yrs77.8%36

Pass Rate Trend

How the 1971 Triumph Unclassified pass rate changes as it ages, from first MOT to most recent.

Trend shows declining over 11 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2019 (48 yrs)77.8%36
2018 (47 yrs)84.5%84
2017 (46 yrs)88.7%248
2016 (45 yrs)87.1%224
2015 (44 yrs)92.6%175
2014 (43 yrs)86.9%168
2013 (42 yrs)83.2%197
2012 (41 yrs)78.6%299
2011 (40 yrs)79.3%319
2010 (39 yrs)73.5%347
2009 (38 yrs)73%378

Year-by-Year MOT Results

2009
73.0%
Age (yrs) 38Tests 378Avg Mileage 35,745Top Failure Lamps, Reflectors and Electrical Equipment — 12.4%
2010
73.5%
Age (yrs) 39Tests 347Avg Mileage 32,359Top Failure Lamps, Reflectors and Electrical Equipment — 9.8%
2011
79.3%
Age (yrs) 40Tests 319Avg Mileage 32,654Top Failure Brakes — 8.2%
2012
78.6%
Age (yrs) 41Tests 299Avg Mileage 28,387Top Failure Lamps, Reflectors and Electrical Equipment — 9.0%
2013
83.2%
Age (yrs) 42Tests 197Avg Mileage 24,993Top Failure Lamps, Reflectors and Electrical Equipment — 12.2%
2014
86.9%
Age (yrs) 43Tests 168Avg Mileage 22,669Top Failure Brakes — 16.7%
2015
92.6%
Age (yrs) 44Tests 175Avg Mileage 25,256Top Failure Lamps, Reflectors and Electrical Equipment — 5.1%
2016
87.1%
Age (yrs) 45Tests 224Avg Mileage 27,559Top Failure Brakes — 8.5%
2017
88.7%
Age (yrs) 46Tests 248Avg Mileage 27,850Top Failure Lamps, Reflectors and Electrical Equipment — 8.1%
2018
84.5%
Age (yrs) 47Tests 84Avg Mileage 30,809Top Failure Lamps, reflectors and electrical equipment — 10.7%
2019
77.8%
Age (yrs) 48Tests 36Avg Mileage 30,917Top Failure Body, chassis, structure — 25.0%

Common MOT Failures

Top failure categories across all test years for 1971 Triumph Unclassified, with age trends.

Body, chassis, structure
14.3%
↑ Increases with age
Visibility
11.1%
— Consistent
Lamps, reflectors and electrical equipment
10.9%
— Consistent
Brakes
9.9%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
9.1%
↓ Decreases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Brakes12.2% (38 yrs)22.2% (48 yrs)
+10.0%
🔴 ↑
Suspension10.1% (38 yrs)16.7% (48 yrs)
+6.6%
🔴 ↑

Other Manufacture Years

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1991 1992 1993 1994 1995 1996 1997 1998 2004 2005 2006 2007 2008 2009 2010 2011 2012
← Back to Triumph Unclassified overview

Looking for the best year to buy? See the full comparison on the Triumph Unclassified page →

About This Data

This page shows how Triumph Unclassified cars manufactured in 1971 perform at MOT as they age. Data spans from 2009 to 2019, covering 2,475 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.

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