CarCostCheck

Porsche 911 carrera s auto

Reliability, running costs, and MOT data across 2 years from 478 real MOT tests.

Avg Pass Rate

97%

Total Tests

478

Best Year

2020 (97%)

Years Covered

2

About the Porsche 911 carrera s auto

The Porsche 911 carrera s auto has been tested 478 times in 2026 MOT data across 2 model years (2020 to 2021), with an average pass rate of 97%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.

Best and Worst Years

The 2020 model is the most reliable with a 97% pass rate from 319 tests. The 2020 model has the lowest at 97%. With just a 0 point spread, the 911 carrera s auto is consistently reliable regardless of year.

Mileage Across Years

The oldest model in our data (2020) averages 17,599 miles, while the newest (2021) averages 16,478 miles.

Compared to the Porsche brand average of 92%, the 911 carrera s auto performs 5 points better, making it one of the more reliable options in the Porsche range.

Estimated Running Costs

Fuel (Petrol, 2981cc)
£1,592
Road Tax
£195
MOT Test
£55
Predicted Repairs
£200
Total per year£2,042
Per month£170/mo

Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Porsche 911 carrera s auto?

vs national average+15% (82% avg)
vs Porsche brand average+5% (92% avg)
Best to worst year spread0 percentage points

Porsche 911 carrera s auto by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

YearPass RateTestsAvg Mileage
202197%15916,478 mi
202097%31917,599 mi

Porsche 911 carrera s auto Guides & Articles

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