1977 Rolls-Royce Unclassified — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

74.3%

Latest Pass Rate

322

Total Tests (All Years)

61,412 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 1977 Rolls-Royce Unclassified as it ages.

32 yrs67.5%

→ ↑2.0%

33 yrs69.5%

→ ↑8.3%

34 yrs77.8%

→ ↓14.4%

35 yrs63.4%

→ ↑13.3%

38 yrs76.7%

→ ↓11.0%

39 yrs65.7%

→ ↑8.6%

40 yrs74.3%

📊 View as table

Age	Pass Rate	Tests
32 yrs	67.5%	77
33 yrs	69.5%	59
34 yrs	77.8%	45
35 yrs	63.4%	41
38 yrs	76.7%	30
39 yrs	65.7%	35
40 yrs	74.3%	35

Pass Rate Trend

How the 1977 Rolls-Royce Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	74.3%	35
2016 (39 yrs)	65.7%	35
2015 (38 yrs)	76.7%	30
2012 (35 yrs)	63.4%	41
2011 (34 yrs)	77.8%	45
2010 (33 yrs)	69.5%	59
2009 (32 yrs)	67.5%	77

Year-by-Year MOT Results

2009

67.5%

Age (yrs) 32Tests 77Avg Mileage 73,950Top Failure Brakes — 18.2%

2010

69.5%

Age (yrs) 33Tests 59Avg Mileage 103,063Top Failure Brakes — 22.0%

2011

77.8%

Age (yrs) 34Tests 45Avg Mileage 71,215Top Failure Lamps, Reflectors and Electrical Equipment — 13.3%

2012High Fail Rate

63.4%

Age (yrs) 35Tests 41Avg Mileage 74,193Top Failure Brakes — 24.4%

2015

76.7%

Age (yrs) 38Tests 30Avg Mileage 65,543Top Failure Brakes — 50.0%

2016

65.7%

Age (yrs) 39Tests 35Avg Mileage 68,846Top Failure Brakes — 40.0%

2017

74.3%

Age (yrs) 40Tests 35Avg Mileage 61,412Top Failure Brakes — 25.7%

MOT results for 1977 Rolls-Royce Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	67.5%	77	73,950	Brakes — 18.2%
2010	33	69.5%	59	103,063	Brakes — 22.0%
2011	34	77.8%	45	71,215	Lamps, Reflectors and Electrical Equipment — 13.3%
2012	35	63.4%	41	74,193	Brakes — 24.4%
2015	38	76.7%	30	65,543	Brakes — 50.0%
2016	39	65.7%	35	68,846	Brakes — 40.0%
2017	40	74.3%	35	61,412	Brakes — 25.7%

Common MOT Failures

Top failure categories across all test years for 1977 Rolls-Royce Unclassified, with age trends.

Brakes

27.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

19.2%

— Consistent

Exhaust, Fuel and Emissions

14.6%

↑ Increases with age

Driver's View of the Road

13.9%

— Consistent

Suspension

11.4%

↑ 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
Exhaust, Fuel and Emissions	9.1% (32 yrs)	22.9% (40 yrs)	+13.8%	🔴 ↑
Brakes	18.2% (32 yrs)	25.7% (40 yrs)	+7.5%	🔴 ↑
Suspension	10.4% (32 yrs)	17.1% (40 yrs)	+6.7%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	16.9% (32 yrs)	17.1% (40 yrs)	+0.2%	⚪ —

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 1977 perform at MOT as they age. Data spans from 2009 to 2017, covering 322 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.