1977 Pontiac Transam MOT Pass Rate
Pass rate for Transam models manufactured in 1977, based on 51 real MOT test results.
Data from official DVSA MOT testing records
1977 Pontiac Transam MOT Analysis
The 1977 Pontiac Transam has an MOT pass rate of 80.4% based on 51 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 69,421 miles on the odometer. With a 19.6% failure rate, the 1977 Transam is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1977 Pontiac Transam is Suspension, responsible for 7.8% of failures. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs range from £200–500. Seat belts and supplementary restraint systems is the second most common issue at 2.0%.
Top failures specific to 1977 models only. The overall Transam page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Suspension | 7.8% | 4 |
| 2 | Seat Belts And Supplementary Restraint Systems | 2.0% | 1 |
Failures per 10,000 Miles
avg. 69,421 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.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Suspension | 1.13 | 7.8% | 4 |
| Seat Belts | 0.28 | 2.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Pontiac Transam has an MOT pass rate of 80.4% based on 51 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 69,421 miles on the odometer. With a 19.6% failure rate, the 1977 Transam is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1977 Pontiac Transam, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to suspension: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks. At 69,421 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Suspension — 7.8% of failures
Suspension issues account for 7.8% of MOT failures on 1977 Pontiac Transam models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Seat belts and supplementary restraint systems — 2.0% of failures
Seat belts and supplementary restraint systems issues account for 2.0% of MOT failures on 1977 Pontiac Transam models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.