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Porsche 911 Carrera S Auto

Reliability, estimated running costs, and MOT data across 2 model years from 478 MOT tests in 2024.

Avg Pass Rate

97%

Total Tests

478

Model Years

2020 to 2021

Years Covered

2

About the Porsche 911 Carrera S Auto

The Porsche 911 Carrera S Auto was MOT tested 478 times in 2024 (DVSA data, retests included) across 2 model years (2020 to 2021), with an average pass rate of 97%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.

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)
£1,958
Road Tax
£200
MOT Test
£55
Predicted Repairs
£200
Total per year£2,413
Per month£201/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Porsche 911 Carrera S Auto?

vs average of all models+15% (82% avg)
vs Porsche brand average+5% (92% avg)

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

Questions about the Porsche 911 Carrera S Auto

Is the Porsche 911 Carrera S Auto reliable?

Across its 2 model years in our data (2020 to 2021), the Porsche 911 Carrera S Auto averages a 97% MOT pass rate, from 478 tests (DVSA MOT data for tests in 2024, retests included). That's 15 points above the average of 82% across all models in the same data.

Porsche 911 Carrera S Auto Guides & Articles

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