1971 MG B Gt V8 — MOT History by Age

How cars manufactured in 1971 perform at MOT as they age

55 years

Current Age

83.3%

Latest Pass Rate

1,114

Total Tests (All Years)

58,858 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 1971 MG B Gt V8 as it ages.

38 yrs71.1%

→ ↑1.6%

39 yrs72.7%

→ ↓0.2%

40 yrs72.5%

→ ↑3.5%

41 yrs76.0%

→ ↑1.6%

42 yrs77.6%

→ ↓3.3%

43 yrs74.3%

→ ↑2.3%

44 yrs76.6%

→ ↓0.0%

45 yrs76.6%

→ ↑3.2%

46 yrs79.8%

→ ↓5.3%

47 yrs74.5%

→ ↑5.5%

48 yrs80.0%

→ ↑3.3%

49 yrs83.3%

📊 View as table

Age	Pass Rate	Tests
38 yrs	71.1%	121
39 yrs	72.7%	121
40 yrs	72.5%	120
41 yrs	76.0%	104
42 yrs	77.6%	98
43 yrs	74.3%	109
44 yrs	76.6%	111
45 yrs	76.6%	111
46 yrs	79.8%	99
47 yrs	74.5%	55
48 yrs	80.0%	35
49 yrs	83.3%	30

Pass Rate Trend

How the 1971 MG B Gt V8 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (49 yrs)	83.3%	30
2019 (48 yrs)	80%	35
2018 (47 yrs)	74.5%	55
2017 (46 yrs)	79.8%	99
2016 (45 yrs)	76.6%	111
2015 (44 yrs)	76.6%	111
2014 (43 yrs)	74.3%	109
2013 (42 yrs)	77.6%	98
2012 (41 yrs)	76%	104
2011 (40 yrs)	72.5%	120
2010 (39 yrs)	72.7%	121
2009 (38 yrs)	71.1%	121

Year-by-Year MOT Results

2009

71.1%

Age (yrs) 38Tests 121Avg Mileage 52,127Top Failure Brakes — 18.2%

2010

72.7%

Age (yrs) 39Tests 121Avg Mileage 52,465Top Failure Lamps, Reflectors and Electrical Equipment — 14.0%

2011

72.5%

Age (yrs) 40Tests 120Avg Mileage 53,375Top Failure Lamps, Reflectors and Electrical Equipment — 15.8%

2012

76.0%

Age (yrs) 41Tests 104Avg Mileage 48,687Top Failure Lamps, Reflectors and Electrical Equipment — 15.4%

2013

77.6%

Age (yrs) 42Tests 98Avg Mileage 52,311Top Failure Lamps, Reflectors and Electrical Equipment — 26.5%

2014

74.3%

Age (yrs) 43Tests 109Avg Mileage 50,848Top Failure Lamps, Reflectors and Electrical Equipment — 28.4%

2015

76.6%

Age (yrs) 44Tests 111Avg Mileage 51,376Top Failure Suspension — 30.6%

2016

76.6%

Age (yrs) 45Tests 111Avg Mileage 50,490Top Failure Lamps, Reflectors and Electrical Equipment — 24.3%

2017

79.8%

Age (yrs) 46Tests 99Avg Mileage 52,305Top Failure Lamps, Reflectors and Electrical Equipment — 27.3%

2018

74.5%

Age (yrs) 47Tests 55Avg Mileage 50,105Top Failure Lamps, reflectors and electrical equipment — 16.4%

2019

80.0%

Age (yrs) 48Tests 35Avg Mileage 46,061Top Failure Suspension — 31.4%

2020

83.3%

Age (yrs) 49Tests 30Avg Mileage 58,858Top Failure Suspension — 10.0%

MOT results for 1971 MG B Gt V8 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	38	71.1%	121	52,127	Brakes — 18.2%
2010	39	72.7%	121	52,465	Lamps, Reflectors and Electrical Equipment — 14.0%
2011	40	72.5%	120	53,375	Lamps, Reflectors and Electrical Equipment — 15.8%
2012	41	76.0%	104	48,687	Lamps, Reflectors and Electrical Equipment — 15.4%
2013	42	77.6%	98	52,311	Lamps, Reflectors and Electrical Equipment — 26.5%
2014	43	74.3%	109	50,848	Lamps, Reflectors and Electrical Equipment — 28.4%
2015	44	76.6%	111	51,376	Suspension — 30.6%
2016	45	76.6%	111	50,490	Lamps, Reflectors and Electrical Equipment — 24.3%
2017	46	79.8%	99	52,305	Lamps, Reflectors and Electrical Equipment — 27.3%
2018	47	74.5%	55	50,105	Lamps, reflectors and electrical equipment — 16.4%
2019	48	80.0%	35	46,061	Suspension — 31.4%
2020	49	83.3%	30	58,858	Suspension — 10.0%

Common MOT Failures

Top failure categories across all test years for 1971 MG B Gt V8, with age trends.

Lamps, Reflectors and Electrical Equipment

21.1%

↓ Decreases with age

Lamps, reflectors and electrical equipment

18.3%

↓ Decreases with age

Brakes

17.1%

↓ Decreases with age

Suspension

14.6%

— Consistent

Visibility

12.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	18.2% (38 yrs)	10.0% (49 yrs)	-8.2%	🟢 ↓
Suspension	12.4% (38 yrs)	10.0% (49 yrs)	-2.4%	🟢 ↓

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 1971 perform at MOT as they age. Data spans from 2009 to 2020, covering 1,114 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.