Porsche 911 carrera 4s
Reliability, running costs, and MOT data across 3 years from 324 real MOT tests.
Avg Pass Rate
91%
Total Tests
324
Best Year
2021 (97%)
Years Covered
3
How reliable is the Porsche 911 carrera 4s?
Porsche 911 carrera 4s by Year
Checking a specific Porsche 911 carrera 4s?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the Porsche 911 carrera 4s
The Porsche 911 carrera 4s has been tested 324 times in 2024 MOT data across 3 model years (2004 to 2021), with an average pass rate of 91%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.
Best and Worst Years
The 2021 model is the most reliable with a 97% pass rate from 258 tests. The 2009 model has the lowest at 82%. The 15 point spread between years means reliability varies somewhat, but no year is dramatically different.
Mileage Across Years
The oldest model in our data (2004) averages 69,237 miles, while the newest (2021) averages 14,894 miles.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.