1977 MG Roadster — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

67.5%

Latest Pass Rate

368

Total Tests (All Years)

39,143 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 MG Roadster as it ages.

32 yrs69.8%

→ ↓17.6%

33 yrs52.2%

→ ↑6.8%

34 yrs59.0%

→ ↑8.4%

35 yrs67.4%

→ ↓10.6%

36 yrs56.8%

→ ↑6.6%

37 yrs63.4%

→ ↑4.9%

38 yrs68.3%

→ ↑5.9%

39 yrs74.2%

→ ↓6.7%

40 yrs67.5%

📊 View as table

Age	Pass Rate	Tests
32 yrs	69.8%	43
33 yrs	52.2%	46
34 yrs	59.0%	39
35 yrs	67.4%	43
36 yrs	56.8%	44
37 yrs	63.4%	41
38 yrs	68.3%	41
39 yrs	74.2%	31
40 yrs	67.5%	40

Pass Rate Trend

How the 1977 MG Roadster pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	67.5%	40
2016 (39 yrs)	74.2%	31
2015 (38 yrs)	68.3%	41
2014 (37 yrs)	63.4%	41
2013 (36 yrs)	56.8%	44
2012 (35 yrs)	67.4%	43
2011 (34 yrs)	59%	39
2010 (33 yrs)	52.2%	46
2009 (32 yrs)	69.8%	43

Year-by-Year MOT Results

2009

69.8%

Age (yrs) 32Tests 43Avg Mileage 40,673Top Failure Suspension — 18.6%

2010High Fail Rate

52.2%

Age (yrs) 33Tests 46Avg Mileage 39,847Top Failure Suspension — 32.6%

2011High Fail Rate

59.0%

Age (yrs) 34Tests 39Avg Mileage 40,925Top Failure Lamps, Reflectors and Electrical Equipment — 20.5%

2012

67.4%

Age (yrs) 35Tests 43Avg Mileage 36,651Top Failure Lamps, Reflectors and Electrical Equipment — 14.0%

2013High Fail Rate

56.8%

Age (yrs) 36Tests 44Avg Mileage 38,480Top Failure Brakes — 47.7%

2014High Fail Rate

63.4%

Age (yrs) 37Tests 41Avg Mileage 37,852Top Failure Lamps, Reflectors and Electrical Equipment — 43.9%

2015

68.3%

Age (yrs) 38Tests 41Avg Mileage 40,089Top Failure Lamps, Reflectors and Electrical Equipment — 29.3%

2016

74.2%

Age (yrs) 39Tests 31Avg Mileage 36,559Top Failure Exhaust, Fuel and Emissions — 32.3%

2017

67.5%

Age (yrs) 40Tests 40Avg Mileage 39,143Top Failure Suspension — 37.5%

MOT results for 1977 MG Roadster by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	69.8%	43	40,673	Suspension — 18.6%
2010	33	52.2%	46	39,847	Suspension — 32.6%
2011	34	59.0%	39	40,925	Lamps, Reflectors and Electrical Equipment — 20.5%
2012	35	67.4%	43	36,651	Lamps, Reflectors and Electrical Equipment — 14.0%
2013	36	56.8%	44	38,480	Brakes — 47.7%
2014	37	63.4%	41	37,852	Lamps, Reflectors and Electrical Equipment — 43.9%
2015	38	68.3%	41	40,089	Lamps, Reflectors and Electrical Equipment — 29.3%
2016	39	74.2%	31	36,559	Exhaust, Fuel and Emissions — 32.3%
2017	40	67.5%	40	39,143	Suspension — 37.5%

Common MOT Failures

Top failure categories across all test years for 1977 MG Roadster, with age trends.

Lamps, Reflectors and Electrical Equipment

27.6%

↑ Increases with age

Suspension

23.0%

↑ Increases with age

Exhaust, Fuel and Emissions

21.5%

↑ Increases with age

Brakes

20.6%

↑ Increases with age

Body, Structure and General Items

19.9%

↑ 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	14.0% (32 yrs)	37.5% (40 yrs)	+23.5%	🔴 ↑
Suspension	18.6% (32 yrs)	37.5% (40 yrs)	+18.9%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	14.0% (32 yrs)	27.5% (40 yrs)	+13.5%	🔴 ↑
Exhaust, Fuel and Emissions	14.0% (32 yrs)	27.5% (40 yrs)	+13.5%	🔴 ↑

Other Manufacture Years

1960 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1977 1978 1979

← Back to MG Roadster overview

Looking for the best year to buy? See the full comparison on the MG Roadster page →

About This Data

This page shows how MG Roadster cars manufactured in 1977 perform at MOT as they age. Data spans from 2009 to 2017, covering 368 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.