PORSCHE CAYENNE TURBO S E-HYBRID AUTO (2021)
Running costs, reliability data, and common problems from 110 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
100%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
3996cc Petrol
Great Choice
100% pass rate, £2042/year to run. 18 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 18 points above the national average of 82%. It also outperforms the PORSCHE brand average of 92%.
At 5 years old, 100% of PORSCHE CAYENNE TURBO S E-HYBRID AUTOs from 2021 passed their MOT first time in 2026. That's based on 110 tests across the UK. The average mileage at this age is 23,234 miles.
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How Does It Compare?
Mileage Analysis
23,234
Average miles
37,000
Expected for age
The average 2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO has 23,234 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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PORSCHE CAYENNE TURBO S E-HYBRID AUTO by Year
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About the 2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO
The 2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO is a luxury with a 3996cc petrol engine. 110 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 0% of all 2021 cars for reliability.
With an average of 23,234 miles at 5 years old, PORSCHE CAYENNE TURBO S E-HYBRID AUTO owners tend to use this car less than the typical driver.
2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO Fuel Costs
The 3996cc 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 CAYENNE TURBO S E-HYBRID AUTO?
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 100% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
PORSCHE CAYENNE TURBO S E-HYBRID AUTO Reliability Trend
The PORSCHE CAYENNE TURBO S E-HYBRID AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO
At 5 years old, the PORSCHE CAYENNE TURBO S E-HYBRID AUTO offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
Based on the 2021 PORSCHE CAYENNE TURBO S E-HYBRID AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
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.
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