1989 Porsche 911 — MOT History by Age

How cars manufactured in 1989 perform at MOT as they age

37 years

Current Age

87.9%

Latest Pass Rate

10,024

Total Tests (All Years)

85,076 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 1989 Porsche 911 as it ages.

20 yrs74.9%

→ ↓0.8%

21 yrs74.1%

→ ↑3.6%

22 yrs77.7%

→ ↓2.3%

23 yrs75.4%

→ ↑0.7%

24 yrs76.1%

→ ↑0.3%

25 yrs76.4%

→ ↑1.6%

26 yrs78.0%

→ ↑0.5%

27 yrs78.5%

→ ↑3.9%

28 yrs82.4%

→ ↓0.0%

29 yrs82.4%

→ ↑0.9%

30 yrs83.3%

→ ↑0.9%

31 yrs84.2%

→ ↑0.4%

32 yrs84.6%

→ ↓1.1%

33 yrs83.5%

→ ↑2.2%

34 yrs85.7%

→ ↑2.2%

35 yrs87.9%

📊 View as table

Age	Pass Rate	Tests
20 yrs	74.9%	764
21 yrs	74.1%	700
22 yrs	77.7%	708
23 yrs	75.4%	675
24 yrs	76.1%	665
25 yrs	76.4%	656
26 yrs	78.0%	674
27 yrs	78.5%	651
28 yrs	82.4%	629
29 yrs	82.4%	444
30 yrs	83.3%	462
31 yrs	84.2%	380
32 yrs	84.6%	505
33 yrs	83.5%	454
34 yrs	85.7%	533
35 yrs	87.9%	1,124

Pass Rate Trend

How the 1989 Porsche 911 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (35 yrs)	87.9%	1,124
2023 (34 yrs)	85.7%	533
2022 (33 yrs)	83.5%	454
2021 (32 yrs)	84.6%	505
2020 (31 yrs)	84.2%	380
2019 (30 yrs)	83.3%	462
2018 (29 yrs)	82.4%	444
2017 (28 yrs)	82.4%	629
2016 (27 yrs)	78.5%	651
2015 (26 yrs)	78%	674
2014 (25 yrs)	76.4%	656
2013 (24 yrs)	76.1%	665
2012 (23 yrs)	75.4%	675
2011 (22 yrs)	77.7%	708
2010 (21 yrs)	74.1%	700
2009 (20 yrs)	74.9%	764

Year-by-Year MOT Results

2009

74.9%

Age (yrs) 20Tests 764Avg Mileage 81,341Top Failure Lamps, Reflectors and Electrical Equipment — 16.1%

2010

74.1%

Age (yrs) 21Tests 700Avg Mileage 82,397Top Failure Lamps, Reflectors and Electrical Equipment — 16.0%

2011

77.7%

Age (yrs) 22Tests 708Avg Mileage 83,987Top Failure Lamps, Reflectors and Electrical Equipment — 13.8%

2012

75.4%

Age (yrs) 23Tests 675Avg Mileage 83,198Top Failure Lamps, Reflectors and Electrical Equipment — 14.8%

2013

76.1%

Age (yrs) 24Tests 665Avg Mileage 85,848Top Failure Lamps, Reflectors and Electrical Equipment — 32.2%

2014

76.4%

Age (yrs) 25Tests 656Avg Mileage 85,829Top Failure Lamps, Reflectors and Electrical Equipment — 29.0%

2015

78.0%

Age (yrs) 26Tests 674Avg Mileage 84,501Top Failure Lamps, Reflectors and Electrical Equipment — 29.4%

2016

78.5%

Age (yrs) 27Tests 651Avg Mileage 84,314Top Failure Lamps, Reflectors and Electrical Equipment — 27.3%

2017

82.4%

Age (yrs) 28Tests 629Avg Mileage 88,094Top Failure Lamps, Reflectors and Electrical Equipment — 18.6%

2018

82.4%

Age (yrs) 29Tests 444Avg Mileage 86,757Top Failure Lamps, reflectors and electrical equipment — 11.9%

2019

83.3%

Age (yrs) 30Tests 462Avg Mileage 88,719Top Failure Lamps, reflectors and electrical equipment — 19.5%

2020

84.2%

Age (yrs) 31Tests 380Avg Mileage 87,088Top Failure Lamps, reflectors and electrical equipment — 16.6%

2021

84.6%

Age (yrs) 32Tests 505Avg Mileage 85,766Top Failure Lamps, reflectors and electrical equipment — 17.2%

2022

83.5%

Age (yrs) 33Tests 454Avg Mileage 85,942Top Failure Lamps, reflectors and electrical equipment — 20.9%

2023

85.7%

Age (yrs) 34Tests 533Avg Mileage 86,867Top Failure Lamps, reflectors and electrical equipment — 15.0%

2024

87.9%

Age (yrs) 35Tests 1,124Avg Mileage 85,076Top Failure Lamps, reflectors and electrical equipment — 11.5%

MOT results for 1989 Porsche 911 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	20	74.9%	764	81,341	Lamps, Reflectors and Electrical Equipment — 16.1%
2010	21	74.1%	700	82,397	Lamps, Reflectors and Electrical Equipment — 16.0%
2011	22	77.7%	708	83,987	Lamps, Reflectors and Electrical Equipment — 13.8%
2012	23	75.4%	675	83,198	Lamps, Reflectors and Electrical Equipment — 14.8%
2013	24	76.1%	665	85,848	Lamps, Reflectors and Electrical Equipment — 32.2%
2014	25	76.4%	656	85,829	Lamps, Reflectors and Electrical Equipment — 29.0%
2015	26	78.0%	674	84,501	Lamps, Reflectors and Electrical Equipment — 29.4%
2016	27	78.5%	651	84,314	Lamps, Reflectors and Electrical Equipment — 27.3%
2017	28	82.4%	629	88,094	Lamps, Reflectors and Electrical Equipment — 18.6%
2018	29	82.4%	444	86,757	Lamps, reflectors and electrical equipment — 11.9%
2019	30	83.3%	462	88,719	Lamps, reflectors and electrical equipment — 19.5%
2020	31	84.2%	380	87,088	Lamps, reflectors and electrical equipment — 16.6%
2021	32	84.6%	505	85,766	Lamps, reflectors and electrical equipment — 17.2%
2022	33	83.5%	454	85,942	Lamps, reflectors and electrical equipment — 20.9%
2023	34	85.7%	533	86,867	Lamps, reflectors and electrical equipment — 15.0%
2024	35	87.9%	1,124	85,076	Lamps, reflectors and electrical equipment — 11.5%

Common MOT Failures

Top failure categories across all test years for 1989 Porsche 911, with age trends.

Lamps, Reflectors and Electrical Equipment

20.6%

↓ Decreases with age

Lamps, reflectors and electrical equipment

16.1%

— Consistent

Brakes

9.7%

↓ Decreases with age

Driver's View of the Road

7.5%

— Consistent

Suspension

7.5%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	8.8% (20 yrs)	3.5% (35 yrs)	-5.3%	🟢 ↓
Tyres	6.2% (20 yrs)	2.8% (35 yrs)	-3.4%	🟢 ↓
Suspension	5.9% (20 yrs)	3.9% (35 yrs)	-2.0%	🟢 ↓

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 1989 perform at MOT as they age. Data spans from 2009 to 2024, covering 10,024 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.