1977 Tvr Unclassified MOT Pass Rate
Pass rate for Unclassified models manufactured in 1977, based on 83 real MOT test results.
Data from official DVSA MOT testing records
1977 Tvr Unclassified MOT Analysis
The 1977 Tvr Unclassified has an MOT pass rate of 62.7% based on 83 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,946 miles on the odometer. With a 37.3% failure rate, the 1977 Unclassified is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1977 Tvr Unclassified is Lamps, reflectors and electrical equipment, responsible for 4.8% of failures. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs range from £5–50. Non-component advisories is the second most common issue at 1.2%. Body, chassis, structure follows at 1.2%.
Top failures specific to 1977 models only. The overall Unclassified page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Lamps, Reflectors And Electrical Equipment | 4.8% | 4 |
| 2 | Non-component Advisories | 1.2% | 1 |
| 3 | Body, Chassis, Structure | 1.2% | 1 |
Failures per 10,000 Miles
avg. 42,946 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Lamps & Electrical | 1.12 | 4.8% | 4 |
| Non-component advisories | 0.28 | 1.2% | 1 |
| Body & Structure | 0.28 | 1.2% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Tvr Unclassified has an MOT pass rate of 62.7% based on 83 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,946 miles on the odometer. With a 37.3% failure rate, the 1977 Unclassified is rated as "Average" for MOT reliability.
If you own or are considering buying a 1977 Tvr Unclassified, budget for potential repairs before each MOT. Before your MOT, pay particular attention to lamps, reflectors and electrical equipment: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test. With relatively low average mileage of 42,946 miles, many of these vehicles are still in good mechanical condition.
Lamps, reflectors and electrical equipment — 4.8% of failures
Lamps, reflectors and electrical equipment issues account for 4.8% of MOT failures on 1977 Tvr Unclassified models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Non-component advisories — 1.2% of failures
Non-component advisories issues account for 1.2% of MOT failures on 1977 Tvr Unclassified models. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Body, chassis, structure — 1.2% of failures
Body, chassis, structure issues account for 1.2% of MOT failures on 1977 Tvr Unclassified models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.