1977 MG Bgt — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

62.5%

Latest Pass Rate

444

Total Tests (All Years)

44,929 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 1977 MG Bgt as it ages.

32 yrs58.1%

→ ↓1.2%

33 yrs56.9%

→ ↑0.8%

34 yrs57.7%

→ ↑20.3%

35 yrs78.0%

→ ↓14.4%

36 yrs63.6%

→ ↓9.6%

37 yrs54.0%

→ ↑3.4%

38 yrs57.4%

→ ↑5.9%

39 yrs63.3%

→ ↓0.8%

40 yrs62.5%

📊 View as table

Age	Pass Rate	Tests
32 yrs	58.1%	62
33 yrs	56.9%	51
34 yrs	57.7%	52
35 yrs	78.0%	41
36 yrs	63.6%	44
37 yrs	54.0%	50
38 yrs	57.4%	47
39 yrs	63.3%	49
40 yrs	62.5%	48

Pass Rate Trend

How the 1977 MG Bgt pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	62.5%	48
2016 (39 yrs)	63.3%	49
2015 (38 yrs)	57.4%	47
2014 (37 yrs)	54%	50
2013 (36 yrs)	63.6%	44
2012 (35 yrs)	78%	41
2011 (34 yrs)	57.7%	52
2010 (33 yrs)	56.9%	51
2009 (32 yrs)	58.1%	62

Year-by-Year MOT Results

2009High Fail Rate

58.1%

Age (yrs) 32Tests 62Avg Mileage 54,023Top Failure Suspension — 24.2%

2010High Fail Rate

56.9%

Age (yrs) 33Tests 51Avg Mileage 50,120Top Failure Lamps, Reflectors and Electrical Equipment — 27.5%

2011High Fail Rate

57.7%

Age (yrs) 34Tests 52Avg Mileage 51,273Top Failure Lamps, Reflectors and Electrical Equipment — 30.8%

2012

78.0%

Age (yrs) 35Tests 41Avg Mileage 45,667Top Failure Suspension — 17.1%

2013High Fail Rate

63.6%

Age (yrs) 36Tests 44Avg Mileage 46,297Top Failure Suspension — 56.8%

2014High Fail Rate

54.0%

Age (yrs) 37Tests 50Avg Mileage 40,739Top Failure Suspension — 88.0%

2015High Fail Rate

57.4%

Age (yrs) 38Tests 47Avg Mileage 51,618Top Failure Brakes — 61.7%

2016High Fail Rate

63.3%

Age (yrs) 39Tests 49Avg Mileage 44,245Top Failure Suspension — 36.7%

2017High Fail Rate

62.5%

Age (yrs) 40Tests 48Avg Mileage 44,929Top Failure Lamps, Reflectors and Electrical Equipment — 58.3%

MOT results for 1977 MG Bgt by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	58.1%	62	54,023	Suspension — 24.2%
2010	33	56.9%	51	50,120	Lamps, Reflectors and Electrical Equipment — 27.5%
2011	34	57.7%	52	51,273	Lamps, Reflectors and Electrical Equipment — 30.8%
2012	35	78.0%	41	45,667	Suspension — 17.1%
2013	36	63.6%	44	46,297	Suspension — 56.8%
2014	37	54.0%	50	40,739	Suspension — 88.0%
2015	38	57.4%	47	51,618	Brakes — 61.7%
2016	39	63.3%	49	44,245	Suspension — 36.7%
2017	40	62.5%	48	44,929	Lamps, Reflectors and Electrical Equipment — 58.3%

Common MOT Failures

Top failure categories across all test years for 1977 MG Bgt, with age trends.

Suspension

39.8%

↑ Increases with age

Body, Structure and General Items

36.0%

— Consistent

Brakes

33.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

29.2%

↑ Increases with age

Exhaust, Fuel and Emissions

18.8%

— 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	17.7% (32 yrs)	58.3% (40 yrs)	+40.6%	🔴 ↑
Suspension	24.2% (32 yrs)	54.2% (40 yrs)	+30.0%	🔴 ↑
Brakes	16.1% (32 yrs)	33.3% (40 yrs)	+17.2%	🔴 ↑

Other Manufacture Years

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

← Back to MG Bgt overview

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

About This Data

This page shows how MG Bgt cars manufactured in 1977 perform at MOT as they age. Data spans from 2009 to 2017, covering 444 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.