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1991 Nissan Unclassified — MOT History by Age

How cars manufactured in 1991 perform at MOT as they age

35 years
Current Age
63.6%
Latest Pass Rate
5,575
Total Tests (All Years)
87,807 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 1991 Nissan Unclassified as it ages.

18 yrs51.7%
19 yrs54.0%
20 yrs53.1%
21 yrs51.6%
22 yrs52.5%
23 yrs51.6%
24 yrs55.7%
25 yrs54.7%
26 yrs60.6%
27 yrs62.4%
28 yrs57.7%
29 yrs60.9%
30 yrs59.5%
31 yrs54.8%
32 yrs72.9%
33 yrs63.6%

Bar chart showing pass rate by car age from 18 to 33 years

Fail Rate %
📊 View as table
AgePass RateTests
18 yrs51.7%1,021
19 yrs54.0%876
20 yrs53.1%716
21 yrs51.6%554
22 yrs52.5%341
23 yrs51.6%248
24 yrs55.7%300
25 yrs54.7%322
26 yrs60.6%345
27 yrs62.4%234
28 yrs57.7%234
29 yrs60.9%197
30 yrs59.5%42
31 yrs54.8%31
32 yrs72.9%48
33 yrs63.6%66

Pass Rate Trend

How the 1991 Nissan Unclassified pass rate changes as it ages, from first MOT to most recent.

Trend shows improving over 16 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (33 yrs)63.6%66
2023 (32 yrs)72.9%48
2022 (31 yrs)54.8%31
2021 (30 yrs)59.5%42
2020 (29 yrs)60.9%197
2019 (28 yrs)57.7%234
2018 (27 yrs)62.4%234
2017 (26 yrs)60.6%345
2016 (25 yrs)54.7%322
2015 (24 yrs)55.7%300
2014 (23 yrs)51.6%248
2013 (22 yrs)52.5%341
2012 (21 yrs)51.6%554
2011 (20 yrs)53.1%716
2010 (19 yrs)54%876
2009 (18 yrs)51.7%1,021

Year-by-Year MOT Results

2009High Fail Rate
51.7%
Age (yrs) 18Tests 1,021Avg Mileage 103,726Top Failure Lamps, Reflectors and Electrical Equipment — 30.5%
2010High Fail Rate
54.0%
Age (yrs) 19Tests 876Avg Mileage 106,594Top Failure Lamps, Reflectors and Electrical Equipment — 27.3%
2011High Fail Rate
53.1%
Age (yrs) 20Tests 716Avg Mileage 107,941Top Failure Lamps, Reflectors and Electrical Equipment — 26.4%
2012High Fail Rate
51.6%
Age (yrs) 21Tests 554Avg Mileage 109,395Top Failure Lamps, Reflectors and Electrical Equipment — 27.8%
2013High Fail Rate
52.5%
Age (yrs) 22Tests 341Avg Mileage 111,147Top Failure Suspension — 45.5%
2014High Fail Rate
51.6%
Age (yrs) 23Tests 248Avg Mileage 111,652Top Failure Brakes — 42.7%
2015High Fail Rate
55.7%
Age (yrs) 24Tests 300Avg Mileage 112,796Top Failure Brakes — 47.3%
2016High Fail Rate
54.7%
Age (yrs) 25Tests 322Avg Mileage 113,704Top Failure Suspension — 55.0%
2017High Fail Rate
60.6%
Age (yrs) 26Tests 345Avg Mileage 111,074Top Failure Brakes — 46.4%
2018High Fail Rate
62.4%
Age (yrs) 27Tests 234Avg Mileage 111,844Top Failure Brakes — 34.2%
2019High Fail Rate
57.7%
Age (yrs) 28Tests 234Avg Mileage 108,828Top Failure Brakes — 41.0%
2020High Fail Rate
60.9%
Age (yrs) 29Tests 197Avg Mileage 112,717Top Failure Suspension — 42.6%
2021High Fail Rate
59.5%
Age (yrs) 30Tests 42Avg Mileage 112,288Top Failure Suspension — 85.7%
2022High Fail Rate
54.8%
Age (yrs) 31Tests 31Avg Mileage 84,126Top Failure Brakes — 93.5%
2023
72.9%
Age (yrs) 32Tests 48Avg Mileage 87,210Top Failure Tyres — 20.8%
2024High Fail Rate
63.6%
Age (yrs) 33Tests 66Avg Mileage 87,807Top Failure Lamps, reflectors and electrical equipment — 57.6%

Common MOT Failures

Top failure categories across all test years for 1991 Nissan Unclassified, with age trends.

Lamps, reflectors and electrical equipment
38.6%
↑ Increases with age
Suspension
38.3%
↑ Increases with age
Brakes
38.0%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
34.3%
↑ Increases with age
Visibility
31.0%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Tyres13.6% (18 yrs)37.9% (33 yrs)
+24.3%
🔴 ↑
Brakes16.9% (18 yrs)33.3% (33 yrs)
+16.4%
🔴 ↑
Steering15.5% (18 yrs)31.8% (33 yrs)
+16.3%
🔴 ↑
Suspension21.0% (18 yrs)28.8% (33 yrs)
+7.8%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Nissan Unclassified page →

About This Data

This page shows how Nissan Unclassified cars manufactured in 1991 perform at MOT as they age. Data spans from 2009 to 2024, covering 5,575 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.

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