1988 Porsche 928 — MOT History by Age

How cars manufactured in 1988 perform at MOT as they age

38 years

Current Age

82.3%

Latest Pass Rate

2,029

Total Tests (All Years)

109,519 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 1988 Porsche 928 as it ages.

21 yrs67.8%

→ ↑4.4%

22 yrs72.2%

→ ↓3.7%

23 yrs68.5%

→ ↑3.8%

24 yrs72.3%

→ ↓4.2%

25 yrs68.1%

→ ↑7.7%

26 yrs75.8%

→ ↓2.7%

27 yrs73.1%

→ ↑0.2%

28 yrs73.3%

→ ↑1.7%

29 yrs75.0%

→ ↓6.0%

30 yrs69.0%

→ ↑7.7%

31 yrs76.7%

→ ↑4.5%

32 yrs81.2%

→ ↓8.1%

33 yrs73.1%

→ ↑13.1%

34 yrs86.2%

→ ↓1.5%

35 yrs84.7%

→ ↓2.4%

36 yrs82.3%

📊 View as table

Age	Pass Rate	Tests
21 yrs	67.8%	177
22 yrs	72.2%	158
23 yrs	68.5%	165
24 yrs	72.3%	141
25 yrs	68.1%	144
26 yrs	75.8%	124
27 yrs	73.1%	134
28 yrs	73.3%	131
29 yrs	75.0%	136
30 yrs	69.0%	87
31 yrs	76.7%	86
32 yrs	81.2%	69
33 yrs	73.1%	93
34 yrs	86.2%	94
35 yrs	84.7%	98
36 yrs	82.3%	192

Pass Rate Trend

How the 1988 Porsche 928 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (36 yrs)	82.3%	192
2023 (35 yrs)	84.7%	98
2022 (34 yrs)	86.2%	94
2021 (33 yrs)	73.1%	93
2020 (32 yrs)	81.2%	69
2019 (31 yrs)	76.7%	86
2018 (30 yrs)	69%	87
2017 (29 yrs)	75%	136
2016 (28 yrs)	73.3%	131
2015 (27 yrs)	73.1%	134
2014 (26 yrs)	75.8%	124
2013 (25 yrs)	68.1%	144
2012 (24 yrs)	72.3%	141
2011 (23 yrs)	68.5%	165
2010 (22 yrs)	72.2%	158
2009 (21 yrs)	67.8%	177

Year-by-Year MOT Results

2009

67.8%

Age (yrs) 21Tests 177Avg Mileage 104,809Top Failure Lamps, Reflectors and Electrical Equipment — 18.6%

2010

72.2%

Age (yrs) 22Tests 158Avg Mileage 105,834Top Failure Lamps, Reflectors and Electrical Equipment — 19.6%

2011

68.5%

Age (yrs) 23Tests 165Avg Mileage 106,406Top Failure Lamps, Reflectors and Electrical Equipment — 24.2%

2012

72.3%

Age (yrs) 24Tests 141Avg Mileage 103,830Top Failure Suspension — 14.2%

2013

68.1%

Age (yrs) 25Tests 144Avg Mileage 107,281Top Failure Lamps, Reflectors and Electrical Equipment — 35.4%

2014

75.8%

Age (yrs) 26Tests 124Avg Mileage 105,453Top Failure Lamps, Reflectors and Electrical Equipment — 22.6%

2015

73.1%

Age (yrs) 27Tests 134Avg Mileage 112,599Top Failure Lamps, Reflectors and Electrical Equipment — 30.6%

2016

73.3%

Age (yrs) 28Tests 131Avg Mileage 109,631Top Failure Lamps, Reflectors and Electrical Equipment — 20.6%

2017

75.0%

Age (yrs) 29Tests 136Avg Mileage 109,013Top Failure Lamps, Reflectors and Electrical Equipment — 39.7%

2018

69.0%

Age (yrs) 30Tests 87Avg Mileage 106,849Top Failure Lamps, reflectors and electrical equipment — 27.6%

2019

76.7%

Age (yrs) 31Tests 86Avg Mileage 111,861Top Failure Lamps, reflectors and electrical equipment — 30.2%

2020

81.2%

Age (yrs) 32Tests 69Avg Mileage 109,896Top Failure Tyres — 20.3%

2021

73.1%

Age (yrs) 33Tests 93Avg Mileage 109,383Top Failure Suspension — 24.7%

2022

86.2%

Age (yrs) 34Tests 94Avg Mileage 105,860Top Failure Lamps, reflectors and electrical equipment — 19.1%

2023

84.7%

Age (yrs) 35Tests 98Avg Mileage 109,907Top Failure Lamps, reflectors and electrical equipment — 15.3%

2024

82.3%

Age (yrs) 36Tests 192Avg Mileage 109,519Top Failure Suspension — 12.5%

MOT results for 1988 Porsche 928 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	21	67.8%	177	104,809	Lamps, Reflectors and Electrical Equipment — 18.6%
2010	22	72.2%	158	105,834	Lamps, Reflectors and Electrical Equipment — 19.6%
2011	23	68.5%	165	106,406	Lamps, Reflectors and Electrical Equipment — 24.2%
2012	24	72.3%	141	103,830	Suspension — 14.2%
2013	25	68.1%	144	107,281	Lamps, Reflectors and Electrical Equipment — 35.4%
2014	26	75.8%	124	105,453	Lamps, Reflectors and Electrical Equipment — 22.6%
2015	27	73.1%	134	112,599	Lamps, Reflectors and Electrical Equipment — 30.6%
2016	28	73.3%	131	109,631	Lamps, Reflectors and Electrical Equipment — 20.6%
2017	29	75.0%	136	109,013	Lamps, Reflectors and Electrical Equipment — 39.7%
2018	30	69.0%	87	106,849	Lamps, reflectors and electrical equipment — 27.6%
2019	31	76.7%	86	111,861	Lamps, reflectors and electrical equipment — 30.2%
2020	32	81.2%	69	109,896	Tyres — 20.3%
2021	33	73.1%	93	109,383	Suspension — 24.7%
2022	34	86.2%	94	105,860	Lamps, reflectors and electrical equipment — 19.1%
2023	35	84.7%	98	109,907	Lamps, reflectors and electrical equipment — 15.3%
2024	36	82.3%	192	109,519	Suspension — 12.5%

Common MOT Failures

Top failure categories across all test years for 1988 Porsche 928, with age trends.

Lamps, Reflectors and Electrical Equipment

23.4%

↓ Decreases with age

Lamps, reflectors and electrical equipment

21.9%

↓ Decreases with age

Suspension

15.2%

— Consistent

Brakes

14.1%

↓ Decreases with age

Tyres

11.0%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	14.1% (21 yrs)	7.8% (36 yrs)	-6.3%	🟢 ↓
Suspension	9.6% (21 yrs)	12.5% (36 yrs)	+2.9%	🔴 ↑

Other Manufacture Years

1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

← Back to Porsche 928 overview

Looking for the best year to buy? See the full comparison on the Porsche 928 page →

About This Data

This page shows how Porsche 928 cars manufactured in 1988 perform at MOT as they age. Data spans from 2009 to 2024, covering 2,029 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.