PORSCHE 911 TARGA 4S HERITAGE (2021)
Running costs, reliability data, and common problems from 86 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
95%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 30-42
2981cc Petrol
Great Choice
95% pass rate, £2042/year to run. 13 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%.
At 5 years old, 95% of PORSCHE 911 TARGA 4S HERITAGEs from 2021 passed their MOT first time in 2026. That's based on 86 tests across the UK. The average mileage at this age is 4,052 miles.
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How Does It Compare?
Mileage Analysis
4,052
Average miles
37,000
Expected for age
The average 2021 PORSCHE 911 TARGA 4S HERITAGE has 4,052 miles on the clock, which is significantly below the expected 37,000 miles for a 5-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
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About the 2021 PORSCHE 911 TARGA 4S HERITAGE
The 2021 PORSCHE 911 TARGA 4S HERITAGE is a luxury with a 2981cc petrol engine. 86 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 4,052 miles at 5 years old, PORSCHE 911 TARGA 4S HERITAGE owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2021 PORSCHE 911 TARGA 4S HERITAGE 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 TARGA 4S HERITAGE?
Total estimated annual running cost is £2,042 (£170/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 PORSCHE 911 TARGA 4S HERITAGE
At 5 years old, the PORSCHE 911 TARGA 4S HERITAGE offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 86 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2021 PORSCHE 911 TARGA 4S HERITAGE's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 PORSCHE 911 TARGA 4S HERITAGE stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| PORSCHE 911 TARGA 4S HERITAGE(2021) | 95% | £1592 | £195 | Grp 30-42 | £2042 |
| BMW 5 SERIES(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£5 |
| BMW X3(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£5 |
| MERCEDES GLC(2019) | 93% | £1592 | £190 | Grp 30-42 | £2037-£5 |
| BMW X5(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Porsche Models
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PORSCHE 911
2018 · 3996cc Petrol
BMW 5 SERIES
2019 · 2998cc Petrol
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MERCEDES GLC
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