FIAT 500 C ROCKSTAR TWINAIR (2020)
Running costs, reliability data, and common problems from 92 real MOT tests.
Annual Cost
£1,405
£117/month
MOT Pass Rate
91%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 1-8
875cc Petrol
Great Choice
91% pass rate, £1405/year to run. 9 points above average.
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Annual Running Costs
~50 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 9 points above the national average of 82%. It also outperforms the FIAT brand average of 83%.
At 6 years old, 91% of FIAT 500 C ROCKSTAR TWINAIRs from 2020 passed their MOT first time in 2026. That's based on 92 tests across the UK. The average mileage at this age is 23,794 miles.
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How Does It Compare?
Mileage Analysis
23,794
Average miles
44,400
Expected for age
The average 2020 FIAT 500 C ROCKSTAR TWINAIR has 23,794 miles on the clock, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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About the 2020 FIAT 500 C ROCKSTAR TWINAIR
The 2020 FIAT 500 C ROCKSTAR TWINAIR is a city car with a 875cc petrol engine. 92 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.
With an average of 23,794 miles at 6 years old, FIAT 500 C ROCKSTAR TWINAIR owners tend to use this car less than the typical driver.
2020 FIAT 500 C ROCKSTAR TWINAIR Fuel Costs
The modest 875cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 FIAT 500 C ROCKSTAR TWINAIR?
Total estimated annual running cost is £1,405 (£117/month), broken down as £955 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2020 FIAT 500 C ROCKSTAR TWINAIR
At 6 years old, the FIAT 500 C ROCKSTAR TWINAIR 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 92 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2020 FIAT 500 C ROCKSTAR TWINAIR's fuel type, age, and engine size, these are the most likely problem areas to check.
Coil Pack Failure
Medium riskSmaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.
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 2020 FIAT 500 C ROCKSTAR TWINAIR stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| FIAT 500 C ROCKSTAR TWINAIR(2020) | 91% | £955 | £195 | Grp 1-8 | £1405 |
| FORD FIESTA(2018) | 90% | £955 | £190 | Grp 1-8 | £1400-£5 |
| NISSAN QASHQAI(2018) | 87% | £955 | £190 | Grp 5-15 | £1550+£145 |
| AUDI A3(2018) | 92% | £955 | £190 | Grp 1-8 | £1400-£5 |
| VAUXHALL MOKKA(2018) | 84% | £1137 | £190 | Grp 8-20 | £1732+£327 |
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 Fiat Models
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