1977 Chevrolet Gmc Corvette — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

85.7%

Latest Pass Rate

338

Total Tests (All Years)

54,323 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 Chevrolet Gmc Corvette as it ages.

32 yrs70.0%

→ ↑8.4%

33 yrs78.4%

→ ↑0.4%

34 yrs78.8%

→ ↑7.3%

35 yrs86.1%

→ ↑1.1%

36 yrs87.2%

→ ↓6.3%

37 yrs80.9%

→ ↑4.1%

38 yrs85.0%

→ ↑2.1%

39 yrs87.1%

→ ↓1.4%

40 yrs85.7%

📊 View as table

Age	Pass Rate	Tests
32 yrs	70.0%	40
33 yrs	78.4%	37
34 yrs	78.8%	33
35 yrs	86.1%	36
36 yrs	87.2%	39
37 yrs	80.9%	47
38 yrs	85.0%	40
39 yrs	87.1%	31
40 yrs	85.7%	35

Pass Rate Trend

How the 1977 Chevrolet Gmc Corvette pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	85.7%	35
2016 (39 yrs)	87.1%	31
2015 (38 yrs)	85%	40
2014 (37 yrs)	80.9%	47
2013 (36 yrs)	87.2%	39
2012 (35 yrs)	86.1%	36
2011 (34 yrs)	78.8%	33
2010 (33 yrs)	78.4%	37
2009 (32 yrs)	70%	40

Year-by-Year MOT Results

2009

70.0%

Age (yrs) 32Tests 40Avg Mileage 56,113Top Failure Lamps, Reflectors and Electrical Equipment — 25.0%

2010

78.4%

Age (yrs) 33Tests 37Avg Mileage 53,740Top Failure Lamps, Reflectors and Electrical Equipment — 18.9%

2011

78.8%

Age (yrs) 34Tests 33Avg Mileage 57,714Top Failure Lamps, Reflectors and Electrical Equipment — 15.2%

2012

86.1%

Age (yrs) 35Tests 36Avg Mileage 56,595Top Failure Lamps, Reflectors and Electrical Equipment — 8.3%

2013

87.2%

Age (yrs) 36Tests 39Avg Mileage 57,245Top Failure Brakes — 23.1%

2014

80.9%

Age (yrs) 37Tests 47Avg Mileage 57,714Top Failure Lamps, Reflectors and Electrical Equipment — 27.7%

2015

85.0%

Age (yrs) 38Tests 40Avg Mileage 55,446Top Failure Suspension — 32.5%

2016

87.1%

Age (yrs) 39Tests 31Avg Mileage 50,458Top Failure Brakes — 48.4%

2017

85.7%

Age (yrs) 40Tests 35Avg Mileage 54,323Top Failure Suspension — 34.3%

MOT results for 1977 Chevrolet Gmc Corvette by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	70.0%	40	56,113	Lamps, Reflectors and Electrical Equipment — 25.0%
2010	33	78.4%	37	53,740	Lamps, Reflectors and Electrical Equipment — 18.9%
2011	34	78.8%	33	57,714	Lamps, Reflectors and Electrical Equipment — 15.2%
2012	35	86.1%	36	56,595	Lamps, Reflectors and Electrical Equipment — 8.3%
2013	36	87.2%	39	57,245	Brakes — 23.1%
2014	37	80.9%	47	57,714	Lamps, Reflectors and Electrical Equipment — 27.7%
2015	38	85.0%	40	55,446	Suspension — 32.5%
2016	39	87.1%	31	50,458	Brakes — 48.4%
2017	40	85.7%	35	54,323	Suspension — 34.3%

Common MOT Failures

Top failure categories across all test years for 1977 Chevrolet Gmc Corvette, with age trends.

Brakes

21.2%

— Consistent

Suspension

17.4%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

17.2%

↓ Decreases with age

Exhaust, Fuel and Emissions

8.9%

↓ Decreases with age

Steering

8.8%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	17.5% (32 yrs)	34.3% (40 yrs)	+16.8%	🔴 ↑
Driver's View of the Road	17.5% (32 yrs)	5.7% (40 yrs)	-11.8%	🟢 ↓
Lamps, Reflectors and Electrical Equipment	25.0% (32 yrs)	14.3% (40 yrs)	-10.7%	🟢 ↓
Brakes	22.5% (32 yrs)	20.0% (40 yrs)	-2.5%	🟢 ↓

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Chevrolet Gmc Corvette page →

About This Data

This page shows how Chevrolet Gmc Corvette cars manufactured in 1977 perform at MOT as they age. Data spans from 2009 to 2017, covering 338 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.