1999 Triumph Thunderbird — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

88.6%

Latest Pass Rate

3,296

Total Tests (All Years)

19,993 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 Triumph Thunderbird as it ages.

10 yrs83.0%

→ ↑2.1%

11 yrs85.1%

→ ↓2.0%

12 yrs83.1%

→ ↑1.3%

13 yrs84.4%

→ ↑3.4%

14 yrs87.8%

→ ↓1.4%

15 yrs86.4%

→ ↑1.3%

16 yrs87.7%

→ ↑3.3%

17 yrs91.0%

→ ↓4.7%

18 yrs86.3%

→ ↑2.2%

19 yrs88.5%

→ ↓0.6%

20 yrs87.9%

→ ↑6.6%

21 yrs94.5%

→ ↓4.9%

22 yrs89.6%

→ ↓3.6%

23 yrs86.0%

→ ↑4.3%

24 yrs90.3%

→ ↓1.7%

25 yrs88.6%

📊 View as table

Age	Pass Rate	Tests
10 yrs	83.0%	265
11 yrs	85.1%	262
12 yrs	83.1%	255
13 yrs	84.4%	231
14 yrs	87.8%	237
15 yrs	86.4%	236
16 yrs	87.7%	219
17 yrs	91.0%	212
18 yrs	86.3%	205
19 yrs	88.5%	131
20 yrs	87.9%	141
21 yrs	94.5%	109
22 yrs	89.6%	164
23 yrs	86.0%	150
24 yrs	90.3%	155
25 yrs	88.6%	324

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (25 yrs)	88.6%	324
2023 (24 yrs)	90.3%	155
2022 (23 yrs)	86%	150
2021 (22 yrs)	89.6%	164
2020 (21 yrs)	94.5%	109
2019 (20 yrs)	87.9%	141
2018 (19 yrs)	88.5%	131
2017 (18 yrs)	86.3%	205
2016 (17 yrs)	91%	212
2015 (16 yrs)	87.7%	219
2014 (15 yrs)	86.4%	236
2013 (14 yrs)	87.8%	237
2012 (13 yrs)	84.4%	231
2011 (12 yrs)	83.1%	255
2010 (11 yrs)	85.1%	262
2009 (10 yrs)	83%	265

Year-by-Year MOT Results

2009

83.0%

Age (yrs) 10Tests 265Avg Mileage 13,932Top Failure Motorcycle lighting and signalling — 9.4%

2010

85.1%

Age (yrs) 11Tests 262Avg Mileage 15,889Top Failure Motorcycle lighting and signalling — 8.0%

2011

83.1%

Age (yrs) 12Tests 255Avg Mileage 16,402Top Failure Motorcycle lighting and signalling — 7.1%

2012

84.4%

Age (yrs) 13Tests 231Avg Mileage 17,711Top Failure Motorcycle lighting and signalling — 7.4%

2013

87.8%

Age (yrs) 14Tests 237Avg Mileage 17,756Top Failure Motorcycle brakes — 10.1%

2014

86.4%

Age (yrs) 15Tests 236Avg Mileage 18,588Top Failure Motorcycle brakes — 8.5%

2015

87.7%

Age (yrs) 16Tests 219Avg Mileage 19,182Top Failure Motorcycle lighting and signalling — 9.6%

2016

91.0%

Age (yrs) 17Tests 212Avg Mileage 19,290Top Failure Motorcycle lighting and signalling — 5.7%

2017

86.3%

Age (yrs) 18Tests 205Avg Mileage 20,797Top Failure Motorcycle lighting and signalling — 8.8%

2018

88.5%

Age (yrs) 19Tests 131Avg Mileage 20,408Top Failure Motorcycle lamps and reflectors — 6.9%

2019

87.9%

Age (yrs) 20Tests 141Avg Mileage 19,544Top Failure Motorcycle lamps and reflectors — 10.6%

2020

94.5%

Age (yrs) 21Tests 109Avg Mileage 20,115Top Failure Motorcycle lamps and reflectors — 3.7%

2021

89.6%

Age (yrs) 22Tests 164Avg Mileage 21,004Top Failure Motorcycle lamps and reflectors — 7.3%

2022

86.0%

Age (yrs) 23Tests 150Avg Mileage 20,589Top Failure Motorcycle lamps and reflectors — 9.3%

2023

90.3%

Age (yrs) 24Tests 155Avg Mileage 20,162Top Failure Motorcycle lamps and reflectors — 7.1%

2024

88.6%

Age (yrs) 25Tests 324Avg Mileage 19,993Top Failure Motorcycle lamps and reflectors — 6.8%

MOT results for 1999 Triumph Thunderbird by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	83.0%	265	13,932	Motorcycle lighting and signalling — 9.4%
2010	11	85.1%	262	15,889	Motorcycle lighting and signalling — 8.0%
2011	12	83.1%	255	16,402	Motorcycle lighting and signalling — 7.1%
2012	13	84.4%	231	17,711	Motorcycle lighting and signalling — 7.4%
2013	14	87.8%	237	17,756	Motorcycle brakes — 10.1%
2014	15	86.4%	236	18,588	Motorcycle brakes — 8.5%
2015	16	87.7%	219	19,182	Motorcycle lighting and signalling — 9.6%
2016	17	91.0%	212	19,290	Motorcycle lighting and signalling — 5.7%
2017	18	86.3%	205	20,797	Motorcycle lighting and signalling — 8.8%
2018	19	88.5%	131	20,408	Motorcycle lamps and reflectors — 6.9%
2019	20	87.9%	141	19,544	Motorcycle lamps and reflectors — 10.6%
2020	21	94.5%	109	20,115	Motorcycle lamps and reflectors — 3.7%
2021	22	89.6%	164	21,004	Motorcycle lamps and reflectors — 7.3%
2022	23	86.0%	150	20,589	Motorcycle lamps and reflectors — 9.3%
2023	24	90.3%	155	20,162	Motorcycle lamps and reflectors — 7.1%
2024	25	88.6%	324	19,993	Motorcycle lamps and reflectors — 6.8%

Common MOT Failures

Top failure categories across all test years for 1999 Triumph Thunderbird, with age trends.

Motorcycle lighting and signalling

7.6%

↓ Decreases with age

Motorcycle lamps and reflectors

7.4%

— Consistent

Motorcycle brakes

5.4%

— Consistent

Motorcycle steering and suspension

4.5%

— Consistent

Motorcycle tyres and wheels

4.1%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle brakes	8.3% (10 yrs)	5.9% (25 yrs)	-2.4%	🟢 ↓

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Triumph Thunderbird page →

About This Data

This page shows how Triumph Thunderbird cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2024, covering 3,296 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.