PORSCHE 911 CARRERA 4S AUTO (2021)
Running costs, common problems, and reliability data based on 89 real MOT tests in 2024.
MOT Pass Rate
98%
Total Tests (2024)
89
Avg Mileage
15,963 mi
Est. Annual Cost
£2,037
Is the 2021 PORSCHE 911 CARRERA 4S AUTO reliable?
Excellent reliability. Very few MOT failures. That's 16 points above the national average of 82%. It also outperforms the PORSCHE brand average of 92%.
At 3 years old, 98% of PORSCHE 911 CARRERA 4S AUTOs from 2021 passed their MOT first time in 2024. That's based on 89 tests across the UK. The average mileage at this age is 15,963 miles.
How does the 2021 PORSCHE 911 CARRERA 4S AUTO compare?
Mileage Analysis
The average 2021 PORSCHE 911 CARRERA 4S AUTO has 15,963 miles on the clock, which is below the expected 22,200 miles for a 3-year-old car. This suggests lighter use than average, which generally means less wear on major components.
How much does a 2021 PORSCHE 911 CARRERA 4S AUTO cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
PORSCHE 911 CARRERA 4S AUTO by Year
Checking a specific PORSCHE 911 CARRERA 4S AUTO?
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About the 2021 PORSCHE 911 CARRERA 4S AUTO
The 2021 PORSCHE 911 CARRERA 4S AUTO is a luxury with a 2981cc petrol engine. 89 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 7% of all 2021 cars for reliability.
With an average of 15,963 miles at 3 years old, PORSCHE 911 CARRERA 4S AUTO owners tend to use this car less than the typical driver.
2021 PORSCHE 911 CARRERA 4S AUTO Fuel Costs
The 2981cc 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 2021 PORSCHE 911 CARRERA 4S AUTO?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 PORSCHE 911 CARRERA 4S AUTO
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. Note: with only 89 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 PORSCHE 911 CARRERA 4S AUTO
The PORSCHE 911 CARRERA 4S AUTO is actually the most reliable option among similar petrol luxurys from this era. Here are comparable petrol cars with similar engines:
- BMW 5 SERIES (2019) 92% pass rate (-6%) from 33,766 tests
- BMW X3 (2019) 92% pass rate (-6%) from 32,937 tests
- MERCEDES GLC (2019) 93% pass rate (-5%) from 30,341 tests
- BMW X5 (2019) 92% pass rate (-6%) from 23,506 tests