1975 Rolls-Royce Unclassified — MOT History by Age

How cars manufactured in 1975 perform at MOT as they age

51 years

Current Age

78.8%

Latest Pass Rate

258

Total Tests (All Years)

57,087 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 1975 Rolls-Royce Unclassified as it ages.

34 yrs67.8%

→ ↑2.0%

35 yrs69.8%

→ ↓3.1%

36 yrs66.7%

→ ↓6.1%

37 yrs60.6%

→ ↑19.4%

41 yrs80.0%

→ ↓1.2%

42 yrs78.8%

📊 View as table

Age	Pass Rate	Tests
34 yrs	67.8%	59
35 yrs	69.8%	53
36 yrs	66.7%	45
37 yrs	60.6%	33
41 yrs	80.0%	35
42 yrs	78.8%	33

Pass Rate Trend

How the 1975 Rolls-Royce Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (42 yrs)	78.8%	33
2016 (41 yrs)	80%	35
2012 (37 yrs)	60.6%	33
2011 (36 yrs)	66.7%	45
2010 (35 yrs)	69.8%	53
2009 (34 yrs)	67.8%	59

Year-by-Year MOT Results

2009

67.8%

Age (yrs) 34Tests 59Avg Mileage 55,509Top Failure Brakes — 28.8%

2010

69.8%

Age (yrs) 35Tests 53Avg Mileage 64,411Top Failure Brakes — 20.8%

2011

66.7%

Age (yrs) 36Tests 45Avg Mileage 61,600Top Failure Brakes — 26.7%

2012High Fail Rate

60.6%

Age (yrs) 37Tests 33Avg Mileage 53,161Top Failure Brakes — 30.3%

2016

80.0%

Age (yrs) 41Tests 35Avg Mileage 52,701Top Failure Brakes — 34.3%

2017

78.8%

Age (yrs) 42Tests 33Avg Mileage 57,087Top Failure Brakes — 18.2%

MOT results for 1975 Rolls-Royce Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	34	67.8%	59	55,509	Brakes — 28.8%
2010	35	69.8%	53	64,411	Brakes — 20.8%
2011	36	66.7%	45	61,600	Brakes — 26.7%
2012	37	60.6%	33	53,161	Brakes — 30.3%
2016	41	80.0%	35	52,701	Brakes — 34.3%
2017	42	78.8%	33	57,087	Brakes — 18.2%

Common MOT Failures

Top failure categories across all test years for 1975 Rolls-Royce Unclassified, with age trends.

Brakes

26.5%

↓ Decreases with age

Lamps, Reflectors and Electrical Equipment

20.2%

↑ Increases with age

Exhaust, Fuel and Emissions

14.0%

↓ Decreases with age

Suspension

13.3%

↓ Decreases with age

Steering

11.3%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	28.8% (34 yrs)	18.2% (42 yrs)	-10.6%	🟢 ↓
Exhaust, Fuel and Emissions	18.6% (34 yrs)	9.1% (42 yrs)	-9.5%	🟢 ↓
Suspension	11.9% (34 yrs)	6.1% (42 yrs)	-5.8%	🟢 ↓
Lamps, Reflectors and Electrical Equipment	13.6% (34 yrs)	18.2% (42 yrs)	+4.6%	🔴 ↑
Driver's View of the Road	10.2% (34 yrs)	6.1% (42 yrs)	-4.1%	🟢 ↓

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Rolls-Royce Unclassified page →

About This Data

This page shows how Rolls-Royce Unclassified cars manufactured in 1975 perform at MOT as they age. Data spans from 2009 to 2017, covering 258 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.