1966 MG B — MOT History by Age

How cars manufactured in 1966 perform at MOT as they age

60 years

Current Age

83.2%

Latest Pass Rate

4,745

Total Tests (All Years)

34,742 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 MG B as it ages.

43 yrs73.2%

→ ↑5.0%

44 yrs78.2%

→ ↓3.2%

45 yrs75.0%

→ ↑2.7%

46 yrs77.7%

→ ↓5.0%

47 yrs72.7%

→ ↑3.8%

48 yrs76.5%

→ ↓0.7%

49 yrs75.8%

→ ↑3.2%

50 yrs79.0%

→ ↓1.6%

51 yrs77.4%

→ ↑5.3%

52 yrs82.7%

→ ↓1.0%

53 yrs81.7%

→ ↓0.8%

54 yrs80.9%

→ ↓3.9%

55 yrs77.0%

→ ↑9.5%

56 yrs86.5%

→ ↓3.0%

57 yrs83.5%

→ ↓0.3%

58 yrs83.2%

📊 View as table

Age	Pass Rate	Tests
43 yrs	73.2%	418
44 yrs	78.2%	417
45 yrs	75.0%	440
46 yrs	77.7%	413
47 yrs	72.7%	432
48 yrs	76.5%	439
49 yrs	75.8%	433
50 yrs	79.0%	442
51 yrs	77.4%	446
52 yrs	82.7%	185
53 yrs	81.7%	142
54 yrs	80.9%	110
55 yrs	77.0%	135
56 yrs	86.5%	89
57 yrs	83.5%	103
58 yrs	83.2%	101

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (58 yrs)	83.2%	101
2023 (57 yrs)	83.5%	103
2022 (56 yrs)	86.5%	89
2021 (55 yrs)	77%	135
2020 (54 yrs)	80.9%	110
2019 (53 yrs)	81.7%	142
2018 (52 yrs)	82.7%	185
2017 (51 yrs)	77.4%	446
2016 (50 yrs)	79%	442
2015 (49 yrs)	75.8%	433
2014 (48 yrs)	76.5%	439
2013 (47 yrs)	72.7%	432
2012 (46 yrs)	77.7%	413
2011 (45 yrs)	75%	440
2010 (44 yrs)	78.2%	417
2009 (43 yrs)	73.2%	418

Year-by-Year MOT Results

2009

73.2%

Age (yrs) 43Tests 418Avg Mileage 38,776Top Failure Brakes — 12.9%

2010

78.2%

Age (yrs) 44Tests 417Avg Mileage 38,667Top Failure Lamps, Reflectors and Electrical Equipment — 11.8%

2011

75.0%

Age (yrs) 45Tests 440Avg Mileage 38,938Top Failure Lamps, Reflectors and Electrical Equipment — 13.2%

2012

77.7%

Age (yrs) 46Tests 413Avg Mileage 40,157Top Failure Brakes — 12.1%

2013

72.7%

Age (yrs) 47Tests 432Avg Mileage 39,089Top Failure Lamps, Reflectors and Electrical Equipment — 29.6%

2014

76.5%

Age (yrs) 48Tests 439Avg Mileage 39,141Top Failure Lamps, Reflectors and Electrical Equipment — 25.3%

2015

75.8%

Age (yrs) 49Tests 433Avg Mileage 39,195Top Failure Lamps, Reflectors and Electrical Equipment — 28.4%

2016

79.0%

Age (yrs) 50Tests 442Avg Mileage 39,068Top Failure Brakes — 24.9%

2017

77.4%

Age (yrs) 51Tests 446Avg Mileage 39,773Top Failure Brakes — 21.5%

2018

82.7%

Age (yrs) 52Tests 185Avg Mileage 32,432Top Failure Brakes — 22.2%

2019

81.7%

Age (yrs) 53Tests 142Avg Mileage 40,081Top Failure Suspension — 17.6%

2020

80.9%

Age (yrs) 54Tests 110Avg Mileage 39,358Top Failure Lamps, reflectors and electrical equipment — 17.3%

2021

77.0%

Age (yrs) 55Tests 135Avg Mileage 34,565Top Failure Lamps, reflectors and electrical equipment — 28.1%

2022

86.5%

Age (yrs) 56Tests 89Avg Mileage 35,208Top Failure Brakes — 20.2%

2023

83.5%

Age (yrs) 57Tests 103Avg Mileage 39,974Top Failure Brakes — 23.3%

2024

83.2%

Age (yrs) 58Tests 101Avg Mileage 34,742Top Failure Brakes — 21.8%

MOT results for 1966 MG B by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	43	73.2%	418	38,776	Brakes — 12.9%
2010	44	78.2%	417	38,667	Lamps, Reflectors and Electrical Equipment — 11.8%
2011	45	75.0%	440	38,938	Lamps, Reflectors and Electrical Equipment — 13.2%
2012	46	77.7%	413	40,157	Brakes — 12.1%
2013	47	72.7%	432	39,089	Lamps, Reflectors and Electrical Equipment — 29.6%
2014	48	76.5%	439	39,141	Lamps, Reflectors and Electrical Equipment — 25.3%
2015	49	75.8%	433	39,195	Lamps, Reflectors and Electrical Equipment — 28.4%
2016	50	79.0%	442	39,068	Brakes — 24.9%
2017	51	77.4%	446	39,773	Brakes — 21.5%
2018	52	82.7%	185	32,432	Brakes — 22.2%
2019	53	81.7%	142	40,081	Suspension — 17.6%
2020	54	80.9%	110	39,358	Lamps, reflectors and electrical equipment — 17.3%
2021	55	77.0%	135	34,565	Lamps, reflectors and electrical equipment — 28.1%
2022	56	86.5%	89	35,208	Brakes — 20.2%
2023	57	83.5%	103	39,974	Brakes — 23.3%
2024	58	83.2%	101	34,742	Brakes — 21.8%

Common MOT Failures

Top failure categories across all test years for 1966 MG B, with age trends.

Brakes

19.2%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

17.2%

↓ Decreases with age

Lamps, reflectors and electrical equipment

14.5%

— Consistent

Suspension

13.2%

— Consistent

Body, chassis, structure

7.1%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	12.9% (43 yrs)	21.8% (58 yrs)	+8.9%	🔴 ↑
Suspension	11.5% (43 yrs)	9.9% (58 yrs)	-1.6%	⚪ —

Other Manufacture Years

1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982

← Back to MG B overview

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About This Data

This page shows how MG B cars manufactured in 1966 perform at MOT as they age. Data spans from 2009 to 2024, covering 4,745 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.