1974 MG B Gt V8 — MOT History by Age

How cars manufactured in 1974 perform at MOT as they age

52 years

Current Age

86.2%

Latest Pass Rate

1,046

Total Tests (All Years)

47,533 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 1974 MG B Gt V8 as it ages.

35 yrs67.8%

→ ↑4.5%

36 yrs72.3%

→ ↑0.3%

37 yrs72.6%

→ ↑7.1%

38 yrs79.7%

→ ↓7.7%

39 yrs72.0%

→ ↑11.8%

40 yrs83.8%

→ ↓3.6%

41 yrs80.2%

→ ↓3.0%

42 yrs77.2%

→ ↑0.4%

43 yrs77.6%

→ ↑9.6%

44 yrs87.2%

→ ↑4.9%

45 yrs92.1%

→ ↑2.1%

47 yrs94.2%

→ ↓6.4%

48 yrs87.8%

→ ↓8.6%

49 yrs79.2%

→ ↑7.0%

50 yrs86.2%

📊 View as table

Age	Pass Rate	Tests
35 yrs	67.8%	87
36 yrs	72.3%	83
37 yrs	72.6%	73
38 yrs	79.7%	79
39 yrs	72.0%	82
40 yrs	83.8%	80
41 yrs	80.2%	86
42 yrs	77.2%	92
43 yrs	77.6%	85
44 yrs	87.2%	47
45 yrs	92.1%	38
47 yrs	94.2%	52
48 yrs	87.8%	49
49 yrs	79.2%	48
50 yrs	86.2%	65

Pass Rate Trend

How the 1974 MG B Gt V8 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (50 yrs)	86.2%	65
2023 (49 yrs)	79.2%	48
2022 (48 yrs)	87.8%	49
2021 (47 yrs)	94.2%	52
2019 (45 yrs)	92.1%	38
2018 (44 yrs)	87.2%	47
2017 (43 yrs)	77.6%	85
2016 (42 yrs)	77.2%	92
2015 (41 yrs)	80.2%	86
2014 (40 yrs)	83.8%	80
2013 (39 yrs)	72%	82
2012 (38 yrs)	79.7%	79
2011 (37 yrs)	72.6%	73
2010 (36 yrs)	72.3%	83
2009 (35 yrs)	67.8%	87

Year-by-Year MOT Results

2009

67.8%

Age (yrs) 35Tests 87Avg Mileage 45,342Top Failure Lamps, Reflectors and Electrical Equipment — 20.7%

2010

72.3%

Age (yrs) 36Tests 83Avg Mileage 47,856Top Failure Lamps, Reflectors and Electrical Equipment — 16.9%

2011

72.6%

Age (yrs) 37Tests 73Avg Mileage 48,737Top Failure Lamps, Reflectors and Electrical Equipment — 16.4%

2012

79.7%

Age (yrs) 38Tests 79Avg Mileage 52,342Top Failure Lamps, Reflectors and Electrical Equipment — 12.7%

2013

72.0%

Age (yrs) 39Tests 82Avg Mileage 51,667Top Failure Lamps, Reflectors and Electrical Equipment — 31.7%

2014

83.8%

Age (yrs) 40Tests 80Avg Mileage 52,233Top Failure Lamps, Reflectors and Electrical Equipment — 21.3%

2015

80.2%

Age (yrs) 41Tests 86Avg Mileage 50,124Top Failure Lamps, Reflectors and Electrical Equipment — 19.8%

2016

77.2%

Age (yrs) 42Tests 92Avg Mileage 48,442Top Failure Lamps, Reflectors and Electrical Equipment — 22.8%

2017

77.6%

Age (yrs) 43Tests 85Avg Mileage 49,923Top Failure Brakes — 22.4%

2018

87.2%

Age (yrs) 44Tests 47Avg Mileage 51,810Top Failure Brakes — 12.8%

2019

92.1%

Age (yrs) 45Tests 38Avg Mileage 46,505Top Failure Brakes — 18.4%

2021

94.2%

Age (yrs) 47Tests 52Avg Mileage 49,709Top Failure Brakes — 5.8%

2022

87.8%

Age (yrs) 48Tests 49Avg Mileage 53,986Top Failure Lamps, reflectors and electrical equipment — 14.3%

2023

79.2%

Age (yrs) 49Tests 48Avg Mileage 55,046Top Failure Lamps, reflectors and electrical equipment — 18.8%

2024

86.2%

Age (yrs) 50Tests 65Avg Mileage 47,533Top Failure Brakes — 35.4%

MOT results for 1974 MG B Gt V8 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	35	67.8%	87	45,342	Lamps, Reflectors and Electrical Equipment — 20.7%
2010	36	72.3%	83	47,856	Lamps, Reflectors and Electrical Equipment — 16.9%
2011	37	72.6%	73	48,737	Lamps, Reflectors and Electrical Equipment — 16.4%
2012	38	79.7%	79	52,342	Lamps, Reflectors and Electrical Equipment — 12.7%
2013	39	72.0%	82	51,667	Lamps, Reflectors and Electrical Equipment — 31.7%
2014	40	83.8%	80	52,233	Lamps, Reflectors and Electrical Equipment — 21.3%
2015	41	80.2%	86	50,124	Lamps, Reflectors and Electrical Equipment — 19.8%
2016	42	77.2%	92	48,442	Lamps, Reflectors and Electrical Equipment — 22.8%
2017	43	77.6%	85	49,923	Brakes — 22.4%
2018	44	87.2%	47	51,810	Brakes — 12.8%
2019	45	92.1%	38	46,505	Brakes — 18.4%
2021	47	94.2%	52	49,709	Brakes — 5.8%
2022	48	87.8%	49	53,986	Lamps, reflectors and electrical equipment — 14.3%
2023	49	79.2%	48	55,046	Lamps, reflectors and electrical equipment — 18.8%
2024	50	86.2%	65	47,533	Brakes — 35.4%

Common MOT Failures

Top failure categories across all test years for 1974 MG B Gt V8, with age trends.

Lamps, Reflectors and Electrical Equipment

19.3%

↓ Decreases with age

Brakes

15.0%

↑ Increases with age

Suspension

10.1%

↓ Decreases with age

Lamps, reflectors and electrical equipment

9.1%

↑ Increases with age

Noise, emissions and leaks

8.6%

↑ 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	16.1% (35 yrs)	35.4% (50 yrs)	+19.3%	🔴 ↑
Suspension	13.8% (35 yrs)	6.2% (50 yrs)	-7.6%	🟢 ↓

Other Manufacture Years

1971 1973 1974 1975 1976

← Back to MG B Gt V8 overview

Looking for the best year to buy? See the full comparison on the MG B Gt V8 page →

About This Data

This page shows how MG B Gt V8 cars manufactured in 1974 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,046 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.