PORSCHE 928 S (1992)
Running costs, common problems, and reliability data based on 58 real MOT tests in 2024.
MOT Pass Rate
72%
Total Tests (2024)
58
Avg Mileage
118,583 mi
Est. Annual Cost
£2,397
Is the 1992 PORSCHE 928 S reliable?
Average reliability. Expect some repairs as it ages. That's 10 points below the national average of 82%. It falls below the PORSCHE brand average of 92%.
At 32 years old, 72% of PORSCHE 928 Ss from 1992 passed their MOT first time in 2024. That's based on 58 tests across the UK. The average mileage at this age is 118,583 miles.
How does the 1992 PORSCHE 928 S compare?
Mileage Analysis
The average 1992 PORSCHE 928 S has 118,583 miles on the clock, which is below the expected 236,800 miles for a 32-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a PORSCHE 928 S?
The most reliable year is the 1990 model with a 84% MOT pass rate, while the 1992 model has the lowest at 72%. Consider a different year if reliability is a priority.
How much does a 1992 PORSCHE 928 S cost to run?
Higher than average due to low pass rate
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
PORSCHE 928 S by Year
Checking a specific PORSCHE 928 S?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1992 PORSCHE 928 S
The 1992 PORSCHE 928 S is a luxury with a 4957cc petrol engine. 58 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 1992, the average MOT pass rate is 77%, and this model falls short of that benchmark.
With an average of 118,583 miles at 32 years old, PORSCHE 928 S owners tend to use this car less than the typical driver.
1992 PORSCHE 928 S Fuel Costs
The 4957cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1992 PORSCHE 928 S?
Total estimated annual running cost is £2,397 (£200/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 72% pass rate. Keeping on top of servicing will help avoid surprises.
PORSCHE 928 S Reliability Trend
Older PORSCHE 928 Ss tend to have better MOT pass rates than newer ones, with an average decline of 8 percentage points across model years.
Buying a Used 1992 PORSCHE 928 S
At 32 years old, the PORSCHE 928 S is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. Note: with only 58 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 1992 PORSCHE 928 S
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES SL (1994) 88% pass rate (+16%) from 1,244 tests
- JAGUAR XJS (1990) 82% pass rate (+10%) from 1,011 tests
- TVR CHIMAERA (1994) 83% pass rate (+11%) from 433 tests
- MERCEDES 500 (1991) 87% pass rate (+15%) from 356 tests