1971 MG Mgb Gt — MOT History by Age

How cars manufactured in 1971 perform at MOT as they age

55 years

Current Age

75.0%

Latest Pass Rate

405

Total Tests (All Years)

42,421 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Mgb Gt

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1971 MG Mgb Gt as it ages.

38 yrs65.0%

→ ↑13.7%

39 yrs78.7%

→ ↓14.3%

40 yrs64.4%

→ ↑10.0%

41 yrs74.4%

→ ↓5.0%

42 yrs69.4%

→ ↓2.1%

43 yrs67.3%

→ ↓0.0%

44 yrs67.3%

→ ↑7.1%

45 yrs74.4%

→ ↑0.6%

46 yrs75.0%

📊 View as table

Age	Pass Rate	Tests
38 yrs	65.0%	40
39 yrs	78.7%	47
40 yrs	64.4%	45
41 yrs	74.4%	43
42 yrs	69.4%	49
43 yrs	67.3%	49
44 yrs	67.3%	49
45 yrs	74.4%	43
46 yrs	75.0%	40

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2017 (46 yrs)	75%	40
2016 (45 yrs)	74.4%	43
2015 (44 yrs)	67.3%	49
2014 (43 yrs)	67.3%	49
2013 (42 yrs)	69.4%	49
2012 (41 yrs)	74.4%	43
2011 (40 yrs)	64.4%	45
2010 (39 yrs)	78.7%	47
2009 (38 yrs)	65%	40

Year-by-Year MOT Results

2009

65.0%

Age (yrs) 38Tests 40Avg Mileage 42,238Top Failure Lamps, Reflectors and Electrical Equipment — 22.5%

2010

78.7%

Age (yrs) 39Tests 47Avg Mileage 41,825Top Failure Brakes — 14.9%

2011High Fail Rate

64.4%

Age (yrs) 40Tests 45Avg Mileage 41,839Top Failure Brakes — 24.4%

2012

74.4%

Age (yrs) 41Tests 43Avg Mileage 41,339Top Failure Brakes — 18.6%

2013

69.4%

Age (yrs) 42Tests 49Avg Mileage 44,487Top Failure Brakes — 42.9%

2014

67.3%

Age (yrs) 43Tests 49Avg Mileage 36,625Top Failure Lamps, Reflectors and Electrical Equipment — 59.2%

2015

67.3%

Age (yrs) 44Tests 49Avg Mileage 44,147Top Failure Lamps, Reflectors and Electrical Equipment — 38.8%

2016

74.4%

Age (yrs) 45Tests 43Avg Mileage 45,386Top Failure Brakes — 27.9%

2017

75.0%

Age (yrs) 46Tests 40Avg Mileage 42,421Top Failure Lamps, Reflectors and Electrical Equipment — 27.5%

MOT results for 1971 MG Mgb Gt by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	38	65.0%	40	42,238	Lamps, Reflectors and Electrical Equipment — 22.5%
2010	39	78.7%	47	41,825	Brakes — 14.9%
2011	40	64.4%	45	41,839	Brakes — 24.4%
2012	41	74.4%	43	41,339	Brakes — 18.6%
2013	42	69.4%	49	44,487	Brakes — 42.9%
2014	43	67.3%	49	36,625	Lamps, Reflectors and Electrical Equipment — 59.2%
2015	44	67.3%	49	44,147	Lamps, Reflectors and Electrical Equipment — 38.8%
2016	45	74.4%	43	45,386	Brakes — 27.9%
2017	46	75.0%	40	42,421	Lamps, Reflectors and Electrical Equipment — 27.5%

Common MOT Failures

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

Lamps, Reflectors and Electrical Equipment

28.0%

↑ Increases with age

Brakes

22.8%

↓ Decreases with age

Suspension

20.5%

— Consistent

Driver's View of the Road

13.6%

— Consistent

Tyres

10.3%

↑ 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	20.0% (38 yrs)	10.0% (46 yrs)	-10.0%	🟢 ↓
Lamps, Reflectors and Electrical Equipment	22.5% (38 yrs)	27.5% (46 yrs)	+5.0%	🔴 ↑
Suspension	15.0% (38 yrs)	12.5% (46 yrs)	-2.5%	🟢 ↓
Driver's View of the Road	12.5% (38 yrs)	10.0% (46 yrs)	-2.5%	🟢 ↓

Other Manufacture Years

1971

← Back to MG Mgb Gt overview

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About This Data

This page shows how MG Mgb Gt cars manufactured in 1971 perform at MOT as they age. Data spans from 2009 to 2017, covering 405 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.