1966 Triumph Herald 1200 — MOT History by Age

How cars manufactured in 1966 perform at MOT as they age

60 years

Current Age

75.8%

Latest Pass Rate

676

Total Tests (All Years)

39,809 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 Herald 1200 as it ages.

43 yrs67.1%

→ ↑10.8%

44 yrs77.9%

→ ↓5.4%

45 yrs72.5%

→ ↓0.3%

46 yrs72.2%

→ ↑1.5%

47 yrs73.7%

→ ↓7.4%

48 yrs66.3%

→ ↑17.0%

49 yrs83.3%

→ ↓5.5%

50 yrs77.8%

→ ↓2.0%

51 yrs75.8%

📊 View as table

Age	Pass Rate	Tests
43 yrs	67.1%	85
44 yrs	77.9%	77
45 yrs	72.5%	69
46 yrs	72.2%	79
47 yrs	73.7%	76
48 yrs	66.3%	80
49 yrs	83.3%	72
50 yrs	77.8%	72
51 yrs	75.8%	66

Pass Rate Trend

How the 1966 Triumph Herald 1200 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (51 yrs)	75.8%	66
2016 (50 yrs)	77.8%	72
2015 (49 yrs)	83.3%	72
2014 (48 yrs)	66.3%	80
2013 (47 yrs)	73.7%	76
2012 (46 yrs)	72.2%	79
2011 (45 yrs)	72.5%	69
2010 (44 yrs)	77.9%	77
2009 (43 yrs)	67.1%	85

Year-by-Year MOT Results

2009

67.1%

Age (yrs) 43Tests 85Avg Mileage 44,384Top Failure Brakes — 20.0%

2010

77.9%

Age (yrs) 44Tests 77Avg Mileage 45,829Top Failure Brakes — 10.4%

2011

72.5%

Age (yrs) 45Tests 69Avg Mileage 41,126Top Failure Brakes — 13.0%

2012

72.2%

Age (yrs) 46Tests 79Avg Mileage 42,044Top Failure Brakes — 13.9%

2013

73.7%

Age (yrs) 47Tests 76Avg Mileage 39,342Top Failure Brakes — 27.6%

2014

66.3%

Age (yrs) 48Tests 80Avg Mileage 41,578Top Failure Brakes — 40.0%

2015

83.3%

Age (yrs) 49Tests 72Avg Mileage 42,305Top Failure Brakes — 20.8%

2016

77.8%

Age (yrs) 50Tests 72Avg Mileage 38,800Top Failure Brakes — 26.4%

2017

75.8%

Age (yrs) 51Tests 66Avg Mileage 39,809Top Failure Brakes — 21.2%

MOT results for 1966 Triumph Herald 1200 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	43	67.1%	85	44,384	Brakes — 20.0%
2010	44	77.9%	77	45,829	Brakes — 10.4%
2011	45	72.5%	69	41,126	Brakes — 13.0%
2012	46	72.2%	79	42,044	Brakes — 13.9%
2013	47	73.7%	76	39,342	Brakes — 27.6%
2014	48	66.3%	80	41,578	Brakes — 40.0%
2015	49	83.3%	72	42,305	Brakes — 20.8%
2016	50	77.8%	72	38,800	Brakes — 26.4%
2017	51	75.8%	66	39,809	Brakes — 21.2%

Common MOT Failures

Top failure categories across all test years for 1966 Triumph Herald 1200, with age trends.

Brakes

21.5%

— Consistent

Lamps, Reflectors and Electrical Equipment

16.0%

— Consistent

Suspension

14.0%

↑ Increases with age

Body, Structure and General Items

11.6%

↓ Decreases with age

Steering

11.2%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	10.6% (43 yrs)	18.2% (51 yrs)	+7.6%	🔴 ↑
Body, Structure and General Items	12.9% (43 yrs)	9.1% (51 yrs)	-3.8%	🟢 ↓
Lamps, Reflectors and Electrical Equipment	11.8% (43 yrs)	13.6% (51 yrs)	+1.8%	⚪ —
Brakes	20.0% (43 yrs)	21.2% (51 yrs)	+1.2%	⚪ —

Other Manufacture Years

1962 1963 1964 1965 1966 1967 1968 1969

← Back to Triumph Herald 1200 overview

Looking for the best year to buy? See the full comparison on the Triumph Herald 1200 page →

About This Data

This page shows how Triumph Herald 1200 cars manufactured in 1966 perform at MOT as they age. Data spans from 2009 to 2017, covering 676 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.