1973 Porsche 911 — MOT History by Age

How cars manufactured in 1973 perform at MOT as they age

53 years

Current Age

97.4%

Latest Pass Rate

1,663

Total Tests (All Years)

47,853 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 1973 Porsche 911 as it ages.

36 yrs74.6%

→ ↑3.2%

37 yrs77.8%

→ ↓5.1%

38 yrs72.7%

→ ↓2.6%

39 yrs70.1%

→ ↑9.4%

40 yrs79.5%

→ ↓6.5%

41 yrs73.0%

→ ↑4.6%

42 yrs77.6%

→ ↓0.9%

43 yrs76.7%

→ ↑0.8%

44 yrs77.5%

→ ↑5.4%

45 yrs82.9%

→ ↓2.0%

46 yrs80.9%

→ ↑6.6%

47 yrs87.5%

→ ↓3.8%

48 yrs83.7%

→ ↑11.4%

49 yrs95.1%

→ ↓11.0%

50 yrs84.1%

→ ↑13.3%

51 yrs97.4%

📊 View as table

Age	Pass Rate	Tests
36 yrs	74.6%	126
37 yrs	77.8%	135
38 yrs	72.7%	121
39 yrs	70.1%	144
40 yrs	79.5%	151
41 yrs	73.0%	152
42 yrs	77.6%	165
43 yrs	76.7%	176
44 yrs	77.5%	169
45 yrs	82.9%	70
46 yrs	80.9%	47
47 yrs	87.5%	40
48 yrs	83.7%	43
49 yrs	95.1%	41
50 yrs	84.1%	44
51 yrs	97.4%	39

Pass Rate Trend

How the 1973 Porsche 911 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (51 yrs)	97.4%	39
2023 (50 yrs)	84.1%	44
2022 (49 yrs)	95.1%	41
2021 (48 yrs)	83.7%	43
2020 (47 yrs)	87.5%	40
2019 (46 yrs)	80.9%	47
2018 (45 yrs)	82.9%	70
2017 (44 yrs)	77.5%	169
2016 (43 yrs)	76.7%	176
2015 (42 yrs)	77.6%	165
2014 (41 yrs)	73%	152
2013 (40 yrs)	79.5%	151
2012 (39 yrs)	70.1%	144
2011 (38 yrs)	72.7%	121
2010 (37 yrs)	77.8%	135
2009 (36 yrs)	74.6%	126

Year-by-Year MOT Results

2009

74.6%

Age (yrs) 36Tests 126Avg Mileage 55,408Top Failure Lamps, Reflectors and Electrical Equipment — 21.4%

2010

77.8%

Age (yrs) 37Tests 135Avg Mileage 48,926Top Failure Lamps, Reflectors and Electrical Equipment — 14.8%

2011

72.7%

Age (yrs) 38Tests 121Avg Mileage 47,332Top Failure Lamps, Reflectors and Electrical Equipment — 19.0%

2012

70.1%

Age (yrs) 39Tests 144Avg Mileage 48,269Top Failure Lamps, Reflectors and Electrical Equipment — 16.7%

2013

79.5%

Age (yrs) 40Tests 151Avg Mileage 54,171Top Failure Lamps, Reflectors and Electrical Equipment — 33.1%

2014

73.0%

Age (yrs) 41Tests 152Avg Mileage 50,355Top Failure Lamps, Reflectors and Electrical Equipment — 59.9%

2015

77.6%

Age (yrs) 42Tests 165Avg Mileage 48,025Top Failure Lamps, Reflectors and Electrical Equipment — 40.6%

2016

76.7%

Age (yrs) 43Tests 176Avg Mileage 48,533Top Failure Lamps, Reflectors and Electrical Equipment — 55.1%

2017

77.5%

Age (yrs) 44Tests 169Avg Mileage 45,194Top Failure Lamps, Reflectors and Electrical Equipment — 30.2%

2018

82.9%

Age (yrs) 45Tests 70Avg Mileage 46,597Top Failure Lamps, Reflectors and Electrical Equipment — 18.6%

2019

80.9%

Age (yrs) 46Tests 47Avg Mileage 43,722Top Failure Lamps, reflectors and electrical equipment — 29.8%

2020

87.5%

Age (yrs) 47Tests 40Avg Mileage 44,845Top Failure Body, chassis, structure — 15.0%

2021

83.7%

Age (yrs) 48Tests 43Avg Mileage 42,777Top Failure Lamps, reflectors and electrical equipment — 30.2%

2022

95.1%

Age (yrs) 49Tests 41Avg Mileage 48,318Top Failure Lamps, reflectors and electrical equipment — 12.2%

2023

84.1%

Age (yrs) 50Tests 44Avg Mileage 45,120Top Failure Lamps, reflectors and electrical equipment — 40.9%

2024

97.4%

Age (yrs) 51Tests 39Avg Mileage 47,853Top Failure Lamps, reflectors and electrical equipment — 5.1%

MOT results for 1973 Porsche 911 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	36	74.6%	126	55,408	Lamps, Reflectors and Electrical Equipment — 21.4%
2010	37	77.8%	135	48,926	Lamps, Reflectors and Electrical Equipment — 14.8%
2011	38	72.7%	121	47,332	Lamps, Reflectors and Electrical Equipment — 19.0%
2012	39	70.1%	144	48,269	Lamps, Reflectors and Electrical Equipment — 16.7%
2013	40	79.5%	151	54,171	Lamps, Reflectors and Electrical Equipment — 33.1%
2014	41	73.0%	152	50,355	Lamps, Reflectors and Electrical Equipment — 59.9%
2015	42	77.6%	165	48,025	Lamps, Reflectors and Electrical Equipment — 40.6%
2016	43	76.7%	176	48,533	Lamps, Reflectors and Electrical Equipment — 55.1%
2017	44	77.5%	169	45,194	Lamps, Reflectors and Electrical Equipment — 30.2%
2018	45	82.9%	70	46,597	Lamps, Reflectors and Electrical Equipment — 18.6%
2019	46	80.9%	47	43,722	Lamps, reflectors and electrical equipment — 29.8%
2020	47	87.5%	40	44,845	Body, chassis, structure — 15.0%
2021	48	83.7%	43	42,777	Lamps, reflectors and electrical equipment — 30.2%
2022	49	95.1%	41	48,318	Lamps, reflectors and electrical equipment — 12.2%
2023	50	84.1%	44	45,120	Lamps, reflectors and electrical equipment — 40.9%
2024	51	97.4%	39	47,853	Lamps, reflectors and electrical equipment — 5.1%

Common MOT Failures

Top failure categories across all test years for 1973 Porsche 911, with age trends.

Lamps, Reflectors and Electrical Equipment

30.9%

— Consistent

Lamps, reflectors and electrical equipment

20.9%

↓ Decreases with age

Suspension

12.8%

↓ Decreases with age

Brakes

10.9%

↓ Decreases with age

Tyres

9.0%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Not enough data to compare failures across ages.

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Porsche 911 page →

About This Data

This page shows how Porsche 911 cars manufactured in 1973 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,663 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.