Porsche 928 S (1980)
1980 Porsche 928 S
CarHunch analysed 137 real MOT records for the 1980 Porsche 928 S. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1980 Porsche 928 S has a 25.8% first-time pass rate—dramatically below the UK average of 80%—which means three in four examples fail their MOT on first attempt. The dangerous defect rate of 3.6% is mercifully low, but the real story is that these cars need serious mechanical attention: with 0.52 failures and 1.7 advisories per vehicle on average, expect repeated visits to sort suspension, exhaust, braking, and fluid issues.
At 88,000 miles median, these are properly used cars rather than garage queens, which partly explains the struggles; however, the 50 median CarHunch score reflects the reality that age and complexity have caught up with them. Before buying one, budget for a full pre-purchase inspection by a Porsche specialist—the first-time pass rate tells you that regular garages won't cut it, and the advisory list suggests these vintage sports cars demand expert care to stay on the road.
What to check before buying a 1980 Porsche 928 S
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Porsche 928 S
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 1980 Porsche 928 S vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1980 Porsche 928 S vehicles fall between 58,022 and 107,258 miles.
1980 Porsche 928 S — Still on the Road
10 vehicles still getting MOTs in 2019 — 77% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2016–2019.
MOT History Averages
Found a specific Porsche 928 S?
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