CarCostCheck

Porsche 911 targa 4 auto

Reliability, running costs, and MOT data across 2 years from 290 real MOT tests.

Avg Pass Rate

97%

Total Tests

290

Best Year

2020 (100%)

Years Covered

2

About the Porsche 911 targa 4 auto

The Porsche 911 targa 4 auto has been tested 290 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 100% pass rate from 64 tests. The 2021 model has the lowest at 94%. The 6 point spread between years means reliability varies somewhat, but no year is dramatically different.

Mileage Across Years

The oldest model in our data (2020) averages 15,521 miles, while the newest (2021) averages 16,822 miles.

Compared to the Porsche brand average of 92%, the 911 targa 4 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 targa 4 auto?

vs national average+15% (82% avg)
vs Porsche brand average+5% (92% avg)
Best to worst year spread6 percentage points

Porsche 911 targa 4 auto by Year

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

YearPass RateTestsAvg Mileage
202194%22616,822 mi
2020100%6415,521 mi

Porsche 911 targa 4 auto Guides & Articles

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