1966 MG B Gt — MOT History by Age

How cars manufactured in 1966 perform at MOT as they age

60 years

Current Age

77.8%

Latest Pass Rate

943

Total Tests (All Years)

39,689 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 Gt as it ages.

43 yrs71.8%

→ ↓1.7%

44 yrs70.1%

→ ↑4.4%

45 yrs74.5%

→ ↓2.6%

46 yrs71.9%

→ ↓6.2%

47 yrs65.7%

→ ↑5.0%

48 yrs70.7%

→ ↓4.0%

49 yrs66.7%

→ ↑4.0%

50 yrs70.7%

→ ↑11.4%

51 yrs82.1%

→ ↓4.3%

52 yrs77.8%

📊 View as table

Age	Pass Rate	Tests
43 yrs	71.8%	103
44 yrs	70.1%	107
45 yrs	74.5%	110
46 yrs	71.9%	96
47 yrs	65.7%	99
48 yrs	70.7%	99
49 yrs	66.7%	99
50 yrs	70.7%	99
51 yrs	82.1%	95
52 yrs	77.8%	36

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2018 (52 yrs)	77.8%	36
2017 (51 yrs)	82.1%	95
2016 (50 yrs)	70.7%	99
2015 (49 yrs)	66.7%	99
2014 (48 yrs)	70.7%	99
2013 (47 yrs)	65.7%	99
2012 (46 yrs)	71.9%	96
2011 (45 yrs)	74.5%	110
2010 (44 yrs)	70.1%	107
2009 (43 yrs)	71.8%	103

Year-by-Year MOT Results

2009

71.8%

Age (yrs) 43Tests 103Avg Mileage 39,365Top Failure Lamps, Reflectors and Electrical Equipment — 14.6%

2010

70.1%

Age (yrs) 44Tests 107Avg Mileage 37,877Top Failure Lamps, Reflectors and Electrical Equipment — 16.8%

2011

74.5%

Age (yrs) 45Tests 110Avg Mileage 36,861Top Failure Brakes — 14.5%

2012

71.9%

Age (yrs) 46Tests 96Avg Mileage 37,631Top Failure Lamps, Reflectors and Electrical Equipment — 17.7%

2013

65.7%

Age (yrs) 47Tests 99Avg Mileage 37,681Top Failure Lamps, Reflectors and Electrical Equipment — 34.3%

2014

70.7%

Age (yrs) 48Tests 99Avg Mileage 35,455Top Failure Lamps, Reflectors and Electrical Equipment — 42.4%

2015

66.7%

Age (yrs) 49Tests 99Avg Mileage 36,978Top Failure Brakes — 35.4%

2016

70.7%

Age (yrs) 50Tests 99Avg Mileage 34,421Top Failure Brakes — 40.4%

2017

82.1%

Age (yrs) 51Tests 95Avg Mileage 35,740Top Failure Suspension — 20.0%

2018

77.8%

Age (yrs) 52Tests 36Avg Mileage 39,689Top Failure Suspension — 19.4%

MOT results for 1966 MG B Gt by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	43	71.8%	103	39,365	Lamps, Reflectors and Electrical Equipment — 14.6%
2010	44	70.1%	107	37,877	Lamps, Reflectors and Electrical Equipment — 16.8%
2011	45	74.5%	110	36,861	Brakes — 14.5%
2012	46	71.9%	96	37,631	Lamps, Reflectors and Electrical Equipment — 17.7%
2013	47	65.7%	99	37,681	Lamps, Reflectors and Electrical Equipment — 34.3%
2014	48	70.7%	99	35,455	Lamps, Reflectors and Electrical Equipment — 42.4%
2015	49	66.7%	99	36,978	Brakes — 35.4%
2016	50	70.7%	99	34,421	Brakes — 40.4%
2017	51	82.1%	95	35,740	Suspension — 20.0%
2018	52	77.8%	36	39,689	Suspension — 19.4%

Common MOT Failures

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

Brakes

22.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

20.4%

↓ Decreases with age

Suspension

19.2%

↑ Increases with age

Tyres

13.1%

— Consistent

Exhaust, Fuel and Emissions

10.3%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Lamps, Reflectors and Electrical Equipment	14.6% (43 yrs)	8.3% (52 yrs)	-6.3%	🟢 ↓
Suspension	13.6% (43 yrs)	19.4% (52 yrs)	+5.8%	🔴 ↑
Driver's View of the Road	8.7% (43 yrs)	8.3% (52 yrs)	-0.4%	⚪ —

Other Manufacture Years

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

← Back to MG B Gt overview

Looking for the best year to buy? See the full comparison on the MG B Gt page →

About This Data

This page shows how MG B Gt cars manufactured in 1966 perform at MOT as they age. Data spans from 2009 to 2018, covering 943 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.