1979 MG Bgt — MOT History by Age

How cars manufactured in 1979 perform at MOT as they age

47 years

Current Age

64.1%

Latest Pass Rate

674

Total Tests (All Years)

47,738 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 1979 MG Bgt as it ages.

30 yrs59.2%

→ ↓5.0%

31 yrs54.2%

→ ↑0.8%

32 yrs55.0%

→ ↑4.3%

33 yrs59.3%

→ ↑5.1%

34 yrs64.4%

→ ↓8.2%

35 yrs56.2%

→ ↑6.6%

36 yrs62.8%

→ ↓1.3%

37 yrs61.5%

→ ↑12.2%

38 yrs73.7%

→ ↓13.7%

39 yrs60.0%

→ ↑4.1%

40 yrs64.1%

📊 View as table

Age	Pass Rate	Tests
30 yrs	59.2%	71
31 yrs	54.2%	59
32 yrs	55.0%	60
33 yrs	59.3%	59
34 yrs	64.4%	73
35 yrs	56.2%	73
36 yrs	62.8%	78
37 yrs	61.5%	65
38 yrs	73.7%	57
39 yrs	60.0%	40
40 yrs	64.1%	39

Pass Rate Trend

How the 1979 MG Bgt pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2019 (40 yrs)	64.1%	39
2018 (39 yrs)	60%	40
2017 (38 yrs)	73.7%	57
2016 (37 yrs)	61.5%	65
2015 (36 yrs)	62.8%	78
2014 (35 yrs)	56.2%	73
2013 (34 yrs)	64.4%	73
2012 (33 yrs)	59.3%	59
2011 (32 yrs)	55%	60
2010 (31 yrs)	54.2%	59
2009 (30 yrs)	59.2%	71

Year-by-Year MOT Results

2009High Fail Rate

59.2%

Age (yrs) 30Tests 71Avg Mileage 52,913Top Failure Suspension — 23.9%

2010High Fail Rate

54.2%

Age (yrs) 31Tests 59Avg Mileage 52,673Top Failure Brakes — 25.4%

2011High Fail Rate

55.0%

Age (yrs) 32Tests 60Avg Mileage 52,103Top Failure Brakes — 25.0%

2012High Fail Rate

59.3%

Age (yrs) 33Tests 59Avg Mileage 50,838Top Failure Suspension — 25.4%

2013High Fail Rate

64.4%

Age (yrs) 34Tests 73Avg Mileage 52,553Top Failure Lamps, Reflectors and Electrical Equipment — 49.3%

2014High Fail Rate

56.2%

Age (yrs) 35Tests 73Avg Mileage 50,762Top Failure Lamps, Reflectors and Electrical Equipment — 46.6%

2015High Fail Rate

62.8%

Age (yrs) 36Tests 78Avg Mileage 49,242Top Failure Lamps, Reflectors and Electrical Equipment — 55.1%

2016High Fail Rate

61.5%

Age (yrs) 37Tests 65Avg Mileage 50,229Top Failure Suspension — 35.4%

2017

73.7%

Age (yrs) 38Tests 57Avg Mileage 52,263Top Failure Suspension — 43.9%

2018High Fail Rate

60.0%

Age (yrs) 39Tests 40Avg Mileage 57,655Top Failure Lamps, Reflectors and Electrical Equipment — 35.0%

2019High Fail Rate

64.1%

Age (yrs) 40Tests 39Avg Mileage 47,738Top Failure Brakes — 53.8%

MOT results for 1979 MG Bgt by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	30	59.2%	71	52,913	Suspension — 23.9%
2010	31	54.2%	59	52,673	Brakes — 25.4%
2011	32	55.0%	60	52,103	Brakes — 25.0%
2012	33	59.3%	59	50,838	Suspension — 25.4%
2013	34	64.4%	73	52,553	Lamps, Reflectors and Electrical Equipment — 49.3%
2014	35	56.2%	73	50,762	Lamps, Reflectors and Electrical Equipment — 46.6%
2015	36	62.8%	78	49,242	Lamps, Reflectors and Electrical Equipment — 55.1%
2016	37	61.5%	65	50,229	Suspension — 35.4%
2017	38	73.7%	57	52,263	Suspension — 43.9%
2018	39	60.0%	40	57,655	Lamps, Reflectors and Electrical Equipment — 35.0%
2019	40	64.1%	39	47,738	Brakes — 53.8%

Common MOT Failures

Top failure categories across all test years for 1979 MG Bgt, with age trends.

Lamps, Reflectors and Electrical Equipment

32.7%

↑ Increases with age

Suspension

32.5%

↑ Increases with age

Brakes

29.9%

↑ Increases with age

Lamps, reflectors and electrical equipment

23.1%

— Consistent

Exhaust, Fuel and Emissions

22.5%

↓ Decreases 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	12.7% (30 yrs)	53.8% (40 yrs)	+41.1%	🔴 ↑
Suspension	23.9% (30 yrs)	51.3% (40 yrs)	+27.4%	🔴 ↑

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 1979 perform at MOT as they age. Data spans from 2009 to 2019, covering 674 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.