1974 Porsche 911 — MOT History by Age

How cars manufactured in 1974 perform at MOT as they age

52 years

Current Age

100.0%

Latest Pass Rate

524

Total Tests (All Years)

50,933 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for 911

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1974 Porsche 911 as it ages.

35 yrs72.5%

→ ↑10.8%

36 yrs83.3%

→ ↓4.6%

37 yrs78.7%

→ ↓2.6%

38 yrs76.1%

→ ↓7.3%

39 yrs68.8%

→ ↓2.1%

40 yrs66.7%

→ ↑1.6%

41 yrs68.3%

→ ↑5.1%

42 yrs73.4%

→ ↑6.9%

43 yrs80.3%

→ ↑19.7%

50 yrs100.0%

📊 View as table

Age	Pass Rate	Tests
35 yrs	72.5%	40
36 yrs	83.3%	48
37 yrs	78.7%	47
38 yrs	76.1%	46
39 yrs	68.8%	48
40 yrs	66.7%	60
41 yrs	68.3%	60
42 yrs	73.4%	64
43 yrs	80.3%	71
50 yrs	100.0%	40

Pass Rate Trend

How the 1974 Porsche 911 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (50 yrs)	100%	40
2017 (43 yrs)	80.3%	71
2016 (42 yrs)	73.4%	64
2015 (41 yrs)	68.3%	60
2014 (40 yrs)	66.7%	60
2013 (39 yrs)	68.8%	48
2012 (38 yrs)	76.1%	46
2011 (37 yrs)	78.7%	47
2010 (36 yrs)	83.3%	48
2009 (35 yrs)	72.5%	40

Year-by-Year MOT Results

2009

72.5%

Age (yrs) 35Tests 40Avg Mileage 47,688Top Failure Suspension — 10.0%

2010

83.3%

Age (yrs) 36Tests 48Avg Mileage 50,290Top Failure Lamps, Reflectors and Electrical Equipment — 16.7%

2011

78.7%

Age (yrs) 37Tests 47Avg Mileage 52,279Top Failure Lamps, Reflectors and Electrical Equipment — 19.1%

2012

76.1%

Age (yrs) 38Tests 46Avg Mileage 50,685Top Failure Lamps, Reflectors and Electrical Equipment — 13.0%

2013

68.8%

Age (yrs) 39Tests 48Avg Mileage 52,704Top Failure Lamps, Reflectors and Electrical Equipment — 72.9%

2014

66.7%

Age (yrs) 40Tests 60Avg Mileage 51,246Top Failure Lamps, Reflectors and Electrical Equipment — 88.3%

2015

68.3%

Age (yrs) 41Tests 60Avg Mileage 47,724Top Failure Lamps, Reflectors and Electrical Equipment — 55.0%

2016

73.4%

Age (yrs) 42Tests 64Avg Mileage 49,099Top Failure Lamps, Reflectors and Electrical Equipment — 40.6%

2017

80.3%

Age (yrs) 43Tests 71Avg Mileage 53,260Top Failure Lamps, Reflectors and Electrical Equipment — 45.1%

2024

100.0%

Age (yrs) 50Tests 40Avg Mileage 50,933Top Failure —

MOT results for 1974 Porsche 911 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	35	72.5%	40	47,688	Suspension — 10.0%
2010	36	83.3%	48	50,290	Lamps, Reflectors and Electrical Equipment — 16.7%
2011	37	78.7%	47	52,279	Lamps, Reflectors and Electrical Equipment — 19.1%
2012	38	76.1%	46	50,685	Lamps, Reflectors and Electrical Equipment — 13.0%
2013	39	68.8%	48	52,704	Lamps, Reflectors and Electrical Equipment — 72.9%
2014	40	66.7%	60	51,246	Lamps, Reflectors and Electrical Equipment — 88.3%
2015	41	68.3%	60	47,724	Lamps, Reflectors and Electrical Equipment — 55.0%
2016	42	73.4%	64	49,099	Lamps, Reflectors and Electrical Equipment — 40.6%
2017	43	80.3%	71	53,260	Lamps, Reflectors and Electrical Equipment — 45.1%
2024	50	100.0%	40	50,933	—

Common MOT Failures

Top failure categories across all test years for 1974 Porsche 911, with age trends.

Lamps, Reflectors and Electrical Equipment

39.8%

↑ Increases with age

Suspension

15.6%

↑ Increases with age

Brakes

14.6%

— Consistent

Driver's View of the Road

10.2%

— Consistent

Registration Plates and VIN

7.3%

— Consistent

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 1974 perform at MOT as they age. Data spans from 2009 to 2024, covering 524 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.