1966 Triumph Unclassified — MOT History by Age

How cars manufactured in 1966 perform at MOT as they age

60 years

Current Age

93.2%

Latest Pass Rate

1,122

Total Tests (All Years)

19,854 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 1966 Triumph Unclassified as it ages.

43 yrs80.3%

→ ↓0.2%

44 yrs80.1%

→ ↑2.1%

45 yrs82.2%

→ ↓1.9%

46 yrs80.3%

→ ↑13.3%

47 yrs93.6%

→ ↓4.4%

48 yrs89.2%

→ ↓2.1%

49 yrs87.1%

→ ↑5.6%

50 yrs92.7%

→ ↑0.5%

51 yrs93.2%

📊 View as table

Age	Pass Rate	Tests
43 yrs	80.3%	142
44 yrs	80.1%	141
45 yrs	82.2%	152
46 yrs	80.3%	127
47 yrs	93.6%	109
48 yrs	89.2%	93
49 yrs	87.1%	101
50 yrs	92.7%	124
51 yrs	93.2%	133

Pass Rate Trend

How the 1966 Triumph Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (51 yrs)	93.2%	133
2016 (50 yrs)	92.7%	124
2015 (49 yrs)	87.1%	101
2014 (48 yrs)	89.2%	93
2013 (47 yrs)	93.6%	109
2012 (46 yrs)	80.3%	127
2011 (45 yrs)	82.2%	152
2010 (44 yrs)	80.1%	141
2009 (43 yrs)	80.3%	142

Year-by-Year MOT Results

2009

80.3%

Age (yrs) 43Tests 142Avg Mileage 25,728Top Failure Brakes — 6.3%

2010

80.1%

Age (yrs) 44Tests 141Avg Mileage 26,597Top Failure Brakes — 8.5%

2011

82.2%

Age (yrs) 45Tests 152Avg Mileage 27,988Top Failure Lamps, Reflectors and Electrical Equipment — 5.3%

2012

80.3%

Age (yrs) 46Tests 127Avg Mileage 21,057Top Failure Motorcycle steering and suspension — 6.3%

2013

93.6%

Age (yrs) 47Tests 109Avg Mileage 19,334Top Failure Exhaust, Fuel and Emissions — 2.8%

2014

89.2%

Age (yrs) 48Tests 93Avg Mileage 20,144Top Failure Motorcycle lighting and signalling — 10.8%

2015

87.1%

Age (yrs) 49Tests 101Avg Mileage 22,357Top Failure Motorcycle brakes — 5.0%

2016

92.7%

Age (yrs) 50Tests 124Avg Mileage 20,876Top Failure Motorcycle lighting and signalling — 6.5%

2017

93.2%

Age (yrs) 51Tests 133Avg Mileage 19,854Top Failure Motorcycle lighting and signalling — 3.0%

MOT results for 1966 Triumph Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	43	80.3%	142	25,728	Brakes — 6.3%
2010	44	80.1%	141	26,597	Brakes — 8.5%
2011	45	82.2%	152	27,988	Lamps, Reflectors and Electrical Equipment — 5.3%
2012	46	80.3%	127	21,057	Motorcycle steering and suspension — 6.3%
2013	47	93.6%	109	19,334	Exhaust, Fuel and Emissions — 2.8%
2014	48	89.2%	93	20,144	Motorcycle lighting and signalling — 10.8%
2015	49	87.1%	101	22,357	Motorcycle brakes — 5.0%
2016	50	92.7%	124	20,876	Motorcycle lighting and signalling — 6.5%
2017	51	93.2%	133	19,854	Motorcycle lighting and signalling — 3.0%

Common MOT Failures

Top failure categories across all test years for 1966 Triumph Unclassified, with age trends.

Motorcycle lighting and signalling

5.2%

— Consistent

Lamps, Reflectors and Electrical Equipment

4.8%

— Consistent

Brakes

4.5%

↓ Decreases with age

Suspension

4.3%

— Consistent

Body, Structure and General Items

4.3%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	6.3% (43 yrs)	1.5% (51 yrs)	-4.8%	🟢 ↓
Motorcycle lighting and signalling	5.6% (43 yrs)	3.0% (51 yrs)	-2.6%	🟢 ↓

Other Manufacture Years

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 1966 perform at MOT as they age. Data spans from 2009 to 2017, covering 1,122 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.