1999 Porsche Boxster — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

74.8%

Latest Pass Rate

23,474

Total Tests (All Years)

92,447 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 1999 Porsche Boxster as it ages.

10 yrs71.0%

→ ↑0.6%

11 yrs71.6%

→ ↓2.4%

12 yrs69.2%

→ ↑0.9%

13 yrs70.1%

→ ↓1.2%

14 yrs68.9%

→ ↓1.1%

15 yrs67.8%

→ ↓0.9%

16 yrs66.9%

→ ↑1.5%

17 yrs68.4%

→ ↓0.2%

18 yrs68.2%

→ ↑2.1%

19 yrs70.3%

→ ↓1.9%

20 yrs68.4%

→ ↑4.1%

21 yrs72.5%

→ ↓1.8%

22 yrs70.7%

→ ↑0.4%

23 yrs71.1%

→ ↑1.2%

24 yrs72.3%

→ ↑2.5%

25 yrs74.8%

📊 View as table

Age	Pass Rate	Tests
10 yrs	71.0%	1,910
11 yrs	71.6%	1,800
12 yrs	69.2%	1,817
13 yrs	70.1%	1,735
14 yrs	68.9%	1,687
15 yrs	67.8%	1,645
16 yrs	66.9%	1,603
17 yrs	68.4%	1,547
18 yrs	68.2%	1,463
19 yrs	70.3%	965
20 yrs	68.4%	1,044
21 yrs	72.5%	892
22 yrs	70.7%	1,152
23 yrs	71.1%	978
24 yrs	72.3%	1,089
25 yrs	74.8%	2,147

Pass Rate Trend

How the 1999 Porsche Boxster pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (25 yrs)	74.8%	2,147
2023 (24 yrs)	72.3%	1,089
2022 (23 yrs)	71.1%	978
2021 (22 yrs)	70.7%	1,152
2020 (21 yrs)	72.5%	892
2019 (20 yrs)	68.4%	1,044
2018 (19 yrs)	70.3%	965
2017 (18 yrs)	68.2%	1,463
2016 (17 yrs)	68.4%	1,547
2015 (16 yrs)	66.9%	1,603
2014 (15 yrs)	67.8%	1,645
2013 (14 yrs)	68.9%	1,687
2012 (13 yrs)	70.1%	1,735
2011 (12 yrs)	69.2%	1,817
2010 (11 yrs)	71.6%	1,800
2009 (10 yrs)	71%	1,910

Year-by-Year MOT Results

2009

71.0%

Age (yrs) 10Tests 1,910Avg Mileage 64,731Top Failure Lamps, Reflectors and Electrical Equipment — 14.5%

2010

71.6%

Age (yrs) 11Tests 1,800Avg Mileage 70,015Top Failure Lamps, Reflectors and Electrical Equipment — 13.6%

2011

69.2%

Age (yrs) 12Tests 1,817Avg Mileage 72,181Top Failure Lamps, Reflectors and Electrical Equipment — 15.2%

2012

70.1%

Age (yrs) 13Tests 1,735Avg Mileage 74,964Top Failure Lamps, Reflectors and Electrical Equipment — 14.1%

2013

68.9%

Age (yrs) 14Tests 1,687Avg Mileage 78,288Top Failure Brakes — 29.8%

2014

67.8%

Age (yrs) 15Tests 1,645Avg Mileage 82,022Top Failure Brakes — 32.5%

2015

66.9%

Age (yrs) 16Tests 1,603Avg Mileage 83,223Top Failure Brakes — 36.4%

2016

68.4%

Age (yrs) 17Tests 1,547Avg Mileage 85,482Top Failure Brakes — 35.9%

2017

68.2%

Age (yrs) 18Tests 1,463Avg Mileage 86,806Top Failure Brakes — 34.7%

2018

70.3%

Age (yrs) 19Tests 965Avg Mileage 87,691Top Failure Brakes — 33.6%

2019

68.4%

Age (yrs) 20Tests 1,044Avg Mileage 89,171Top Failure Brakes — 42.4%

2020

72.5%

Age (yrs) 21Tests 892Avg Mileage 90,488Top Failure Brakes — 37.8%

2021

70.7%

Age (yrs) 22Tests 1,152Avg Mileage 91,152Top Failure Brakes — 39.4%

2022

71.1%

Age (yrs) 23Tests 978Avg Mileage 90,370Top Failure Brakes — 39.3%

2023

72.3%

Age (yrs) 24Tests 1,089Avg Mileage 91,259Top Failure Brakes — 44.9%

2024

74.8%

Age (yrs) 25Tests 2,147Avg Mileage 92,447Top Failure Brakes — 29.7%

MOT results for 1999 Porsche Boxster by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	71.0%	1,910	64,731	Lamps, Reflectors and Electrical Equipment — 14.5%
2010	11	71.6%	1,800	70,015	Lamps, Reflectors and Electrical Equipment — 13.6%
2011	12	69.2%	1,817	72,181	Lamps, Reflectors and Electrical Equipment — 15.2%
2012	13	70.1%	1,735	74,964	Lamps, Reflectors and Electrical Equipment — 14.1%
2013	14	68.9%	1,687	78,288	Brakes — 29.8%
2014	15	67.8%	1,645	82,022	Brakes — 32.5%
2015	16	66.9%	1,603	83,223	Brakes — 36.4%
2016	17	68.4%	1,547	85,482	Brakes — 35.9%
2017	18	68.2%	1,463	86,806	Brakes — 34.7%
2018	19	70.3%	965	87,691	Brakes — 33.6%
2019	20	68.4%	1,044	89,171	Brakes — 42.4%
2020	21	72.5%	892	90,488	Brakes — 37.8%
2021	22	70.7%	1,152	91,152	Brakes — 39.4%
2022	23	71.1%	978	90,370	Brakes — 39.3%
2023	24	72.3%	1,089	91,259	Brakes — 44.9%
2024	25	74.8%	2,147	92,447	Brakes — 29.7%

Common MOT Failures

Top failure categories across all test years for 1999 Porsche Boxster, with age trends.

Brakes

30.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

24.2%

— Consistent

Lamps, Reflectors and Electrical Equipment

20.7%

↑ Increases with age

Suspension

20.0%

↑ Increases with age

Tyres

17.4%

↑ 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	12.2% (10 yrs)	29.7% (25 yrs)	+17.5%	🔴 ↑
Suspension	7.4% (10 yrs)	18.3% (25 yrs)	+10.9%	🔴 ↑
Tyres	11.0% (10 yrs)	14.5% (25 yrs)	+3.5%	🔴 ↑

Other Manufacture Years

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

About This Data

This page shows how Porsche Boxster cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2024, covering 23,474 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.