1978 Chevrolet Gmc Corvette — MOT History by Age

How cars manufactured in 1978 perform at MOT as they age

48 years

Current Age

86.0%

Latest Pass Rate

526

Total Tests (All Years)

52,283 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 1978 Chevrolet Gmc Corvette as it ages.

31 yrs55.6%

→ ↑19.0%

32 yrs74.6%

→ ↑3.0%

33 yrs77.6%

→ ↑0.4%

34 yrs78.0%

→ ↑1.0%

35 yrs79.0%

→ ↑8.7%

36 yrs87.7%

→ ↓12.7%

37 yrs75.0%

→ ↑12.8%

38 yrs87.8%

→ ↓1.8%

39 yrs86.0%

📊 View as table

Age	Pass Rate	Tests
31 yrs	55.6%	63
32 yrs	74.6%	63
33 yrs	77.6%	67
34 yrs	78.0%	59
35 yrs	79.0%	62
36 yrs	87.7%	57
37 yrs	75.0%	56
38 yrs	87.8%	49
39 yrs	86.0%	50

Pass Rate Trend

How the 1978 Chevrolet Gmc Corvette pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (39 yrs)	86%	50
2016 (38 yrs)	87.8%	49
2015 (37 yrs)	75%	56
2014 (36 yrs)	87.7%	57
2013 (35 yrs)	79%	62
2012 (34 yrs)	78%	59
2011 (33 yrs)	77.6%	67
2010 (32 yrs)	74.6%	63
2009 (31 yrs)	55.6%	63

Year-by-Year MOT Results

2009High Fail Rate

55.6%

Age (yrs) 31Tests 63Avg Mileage 60,643Top Failure Lamps, Reflectors and Electrical Equipment — 27.0%

2010

74.6%

Age (yrs) 32Tests 63Avg Mileage 58,059Top Failure Brakes — 15.9%

2011

77.6%

Age (yrs) 33Tests 67Avg Mileage 57,405Top Failure Brakes — 13.4%

2012

78.0%

Age (yrs) 34Tests 59Avg Mileage 52,163Top Failure Lamps, Reflectors and Electrical Equipment — 15.3%

2013

79.0%

Age (yrs) 35Tests 62Avg Mileage 54,484Top Failure Suspension — 30.6%

2014

87.7%

Age (yrs) 36Tests 57Avg Mileage 50,279Top Failure Lamps, Reflectors and Electrical Equipment — 21.1%

2015

75.0%

Age (yrs) 37Tests 56Avg Mileage 53,031Top Failure Brakes — 35.7%

2016

87.8%

Age (yrs) 38Tests 49Avg Mileage 54,351Top Failure Lamps, Reflectors and Electrical Equipment — 20.4%

2017

86.0%

Age (yrs) 39Tests 50Avg Mileage 52,283Top Failure Suspension — 18.0%

MOT results for 1978 Chevrolet Gmc Corvette by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	31	55.6%	63	60,643	Lamps, Reflectors and Electrical Equipment — 27.0%
2010	32	74.6%	63	58,059	Brakes — 15.9%
2011	33	77.6%	67	57,405	Brakes — 13.4%
2012	34	78.0%	59	52,163	Lamps, Reflectors and Electrical Equipment — 15.3%
2013	35	79.0%	62	54,484	Suspension — 30.6%
2014	36	87.7%	57	50,279	Lamps, Reflectors and Electrical Equipment — 21.1%
2015	37	75.0%	56	53,031	Brakes — 35.7%
2016	38	87.8%	49	54,351	Lamps, Reflectors and Electrical Equipment — 20.4%
2017	39	86.0%	50	52,283	Suspension — 18.0%

Common MOT Failures

Top failure categories across all test years for 1978 Chevrolet Gmc Corvette, with age trends.

Lamps, Reflectors and Electrical Equipment

18.9%

↓ Decreases with age

Brakes

16.0%

↓ Decreases with age

Suspension

14.2%

↑ Increases with age

Steering

8.8%

↓ Decreases with age

Exhaust, Fuel and Emissions

8.5%

↓ Decreases 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	25.4% (31 yrs)	12.0% (39 yrs)	-13.4%	🟢 ↓
Lamps, Reflectors and Electrical Equipment	27.0% (31 yrs)	18.0% (39 yrs)	-9.0%	🟢 ↓
Driver's View of the Road	9.5% (31 yrs)	4.0% (39 yrs)	-5.5%	🟢 ↓

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 1978 perform at MOT as they age. Data spans from 2009 to 2017, covering 526 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.