1975 MG B Gt V8 — MOT History by Age

How cars manufactured in 1975 perform at MOT as they age

51 years

Current Age

88.9%

Latest Pass Rate

1,011

Total Tests (All Years)

48,616 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for B Gt V8

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1975 MG B Gt V8 as it ages.

34 yrs64.8%

→ ↓0.2%

35 yrs64.6%

→ ↑4.3%

36 yrs68.9%

→ ↑7.3%

37 yrs76.2%

→ ↓2.2%

38 yrs74.0%

→ ↓4.6%

39 yrs69.4%

→ ↑13.3%

40 yrs82.7%

→ ↓11.1%

41 yrs71.6%

→ ↓3.6%

42 yrs68.0%

→ ↑3.4%

43 yrs71.4%

→ ↑15.1%

44 yrs86.5%

→ ↓16.8%

46 yrs69.7%

→ ↑14.7%

47 yrs84.4%

→ ↓0.5%

48 yrs83.9%

→ ↑5.0%

49 yrs88.9%

📊 View as table

Age	Pass Rate	Tests
34 yrs	64.8%	91
35 yrs	64.6%	99
36 yrs	68.9%	90
37 yrs	76.2%	84
38 yrs	74.0%	77
39 yrs	69.4%	85
40 yrs	82.7%	75
41 yrs	71.6%	102
42 yrs	68.0%	97
43 yrs	71.4%	42
44 yrs	86.5%	37
46 yrs	69.7%	33
47 yrs	84.4%	32
48 yrs	83.9%	31
49 yrs	88.9%	36

Pass Rate Trend

How the 1975 MG B Gt V8 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (49 yrs)	88.9%	36
2023 (48 yrs)	83.9%	31
2022 (47 yrs)	84.4%	32
2021 (46 yrs)	69.7%	33
2019 (44 yrs)	86.5%	37
2018 (43 yrs)	71.4%	42
2017 (42 yrs)	68%	97
2016 (41 yrs)	71.6%	102
2015 (40 yrs)	82.7%	75
2014 (39 yrs)	69.4%	85
2013 (38 yrs)	74%	77
2012 (37 yrs)	76.2%	84
2011 (36 yrs)	68.9%	90
2010 (35 yrs)	64.6%	99
2009 (34 yrs)	64.8%	91

Year-by-Year MOT Results

2009High Fail Rate

64.8%

Age (yrs) 34Tests 91Avg Mileage 47,365Top Failure Lamps, Reflectors and Electrical Equipment — 22.0%

2010High Fail Rate

64.6%

Age (yrs) 35Tests 99Avg Mileage 46,648Top Failure Lamps, Reflectors and Electrical Equipment — 19.2%

2011

68.9%

Age (yrs) 36Tests 90Avg Mileage 48,502Top Failure Lamps, Reflectors and Electrical Equipment — 17.8%

2012

76.2%

Age (yrs) 37Tests 84Avg Mileage 51,489Top Failure Suspension — 10.7%

2013

74.0%

Age (yrs) 38Tests 77Avg Mileage 50,908Top Failure Lamps, Reflectors and Electrical Equipment — 27.3%

2014

69.4%

Age (yrs) 39Tests 85Avg Mileage 50,151Top Failure Lamps, Reflectors and Electrical Equipment — 42.4%

2015

82.7%

Age (yrs) 40Tests 75Avg Mileage 49,268Top Failure Lamps, Reflectors and Electrical Equipment — 17.3%

2016

71.6%

Age (yrs) 41Tests 102Avg Mileage 48,865Top Failure Lamps, Reflectors and Electrical Equipment — 40.2%

2017

68.0%

Age (yrs) 42Tests 97Avg Mileage 48,778Top Failure Lamps, Reflectors and Electrical Equipment — 41.2%

2018

71.4%

Age (yrs) 43Tests 42Avg Mileage 53,262Top Failure Lamps, reflectors and electrical equipment — 33.3%

2019

86.5%

Age (yrs) 44Tests 37Avg Mileage 50,773Top Failure Lamps, reflectors and electrical equipment — 10.8%

2021

69.7%

Age (yrs) 46Tests 33Avg Mileage 48,164Top Failure Noise, emissions and leaks — 36.4%

2022

84.4%

Age (yrs) 47Tests 32Avg Mileage 52,424Top Failure Brakes — 15.6%

2023

83.9%

Age (yrs) 48Tests 31Avg Mileage 47,661Top Failure Lamps, reflectors and electrical equipment — 25.8%

2024

88.9%

Age (yrs) 49Tests 36Avg Mileage 48,616Top Failure Noise, emissions and leaks — 13.9%

MOT results for 1975 MG B Gt V8 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	34	64.8%	91	47,365	Lamps, Reflectors and Electrical Equipment — 22.0%
2010	35	64.6%	99	46,648	Lamps, Reflectors and Electrical Equipment — 19.2%
2011	36	68.9%	90	48,502	Lamps, Reflectors and Electrical Equipment — 17.8%
2012	37	76.2%	84	51,489	Suspension — 10.7%
2013	38	74.0%	77	50,908	Lamps, Reflectors and Electrical Equipment — 27.3%
2014	39	69.4%	85	50,151	Lamps, Reflectors and Electrical Equipment — 42.4%
2015	40	82.7%	75	49,268	Lamps, Reflectors and Electrical Equipment — 17.3%
2016	41	71.6%	102	48,865	Lamps, Reflectors and Electrical Equipment — 40.2%
2017	42	68.0%	97	48,778	Lamps, Reflectors and Electrical Equipment — 41.2%
2018	43	71.4%	42	53,262	Lamps, reflectors and electrical equipment — 33.3%
2019	44	86.5%	37	50,773	Lamps, reflectors and electrical equipment — 10.8%
2021	46	69.7%	33	48,164	Noise, emissions and leaks — 36.4%
2022	47	84.4%	32	52,424	Brakes — 15.6%
2023	48	83.9%	31	47,661	Lamps, reflectors and electrical equipment — 25.8%
2024	49	88.9%	36	48,616	Noise, emissions and leaks — 13.9%

Common MOT Failures

Top failure categories across all test years for 1975 MG B Gt V8, with age trends.

Lamps, Reflectors and Electrical Equipment

26.3%

↑ Increases with age

Lamps, reflectors and electrical equipment

16.7%

↓ Decreases with age

Noise, emissions and leaks

15.8%

— Consistent

Suspension

15.2%

↓ Decreases with age

Brakes

14.9%

↓ 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	13.2% (34 yrs)	5.6% (49 yrs)	-7.6%	🟢 ↓
Suspension	16.5% (34 yrs)	11.1% (49 yrs)	-5.4%	🟢 ↓

Other Manufacture Years

1971 1973 1974 1975 1976

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About This Data

This page shows how MG B Gt V8 cars manufactured in 1975 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,011 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.