CarCostCheck

FIAT 500X SPORT (2021)

Running costs, common problems, and reliability data based on 775 real MOT tests in 2024.

MOT Pass Rate

94%

Total Tests (2024)

775

Avg Mileage

20,826 mi

Est. Annual Cost

£1,400

Is the 2021 FIAT 500X SPORT reliable?

Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the FIAT brand average of 83%.

At 3 years old, 94% of FIAT 500X SPORTs from 2021 passed their MOT first time in 2024. That's based on 775 tests across the UK. The average mileage at this age is 20,826 miles.

How does the 2021 FIAT 500X SPORT compare?

Rank among all 2021 cars1199th out of 3,373(top 36%)
Rank among all FIAT models140th out of 818(top 17%)
vs national average+12% (82% avg)
vs 2021 cars average+2% (92% avg)
vs FIAT average+11% (83% avg)

Mileage Analysis

The average 2021 FIAT 500X SPORT has 20,826 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

How much does a 2021 FIAT 500X SPORT cost to run?

Fuel (Petrol, 999cc)
£955
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,400
Per month£117/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

FIAT 500X SPORT by Year

YearPass RateTestsAvg Mileage
202288%4919,946 mi
202194%77520,826 mi
202089%70628,629 mi
201987%16329,595 mi

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About the 2021 FIAT 500X SPORT

The 2021 FIAT 500X SPORT is a city car with a 999cc petrol engine. 775 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 20,826 miles at 3 years old, FIAT 500X SPORT owners drive about as much as the UK average.

2021 FIAT 500X SPORT Fuel Costs

The modest 999cc 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 2021 FIAT 500X SPORT?

Total estimated annual running cost is £1,400 117/month), broken down as £955 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

FIAT 500X SPORT Reliability Trend

Newer FIAT 500X SPORTs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.

Buying a Used 2021 FIAT 500X SPORT

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.

Alternatives to the 2021 FIAT 500X SPORT

The FIAT 500X SPORT is actually the most reliable option among similar petrol city cars from this era. Here are comparable petrol cars with similar engines: