SEAT Arona Xcellence Ecotsi (2021)

Estimated running costs and MOT pass rates from 378 MOT tests in 2024.

Annual Cost

£1,630

£136/month

MOT Pass Rate

90%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 1-8

999cc Petrol

Great Choice

90% pass rate, £1,630/year to run. 8 points above average.

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Petrol999cc5 years old378 tests29k miles avg

Annual Running Costs

Fuel (Petrol, 999cc)

~50 mpg

£1,175

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,630

Per month£136/mo

Per week£31/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

90% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 8 points above the average of 82% across all models in our data. It also outperforms the SEAT brand average of 85%.

90% of MOT tests on SEAT Arona Xcellence Ecotsis from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 378 tests across the UK, retests included. The average mileage recorded at those tests was 28,877 miles.

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How Does It Compare?

Rank among 2021 models2505th of 3,336(bottom 25%)

Rank among SEAT models134th of 310(top half)

vs average of all models+8%(82% avg)

vs 2021 models average-2%(92% avg)

vs SEAT average+5%(85% avg)

Mileage Analysis

28,877

Average miles

22,200

Expected for age

The average 2021 SEAT Arona Xcellence Ecotsi had 28,877 miles on the clock at its 2024 MOT, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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Similar Cars to Consider

Ford Fiesta

2019 · 998cc Petrol

£1,630/year

91%

+1%

Volkswagen Golf

2019 · 1498cc Petrol

£1,853/year

92%

+2%

Vauxhall Corsa

2019 · 1398cc Petrol

£2,003/year

88%

-2%

MINI Cooper

2019 · 1499cc Petrol

£1,853/year

92%

+2%

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About the 2021 SEAT Arona Xcellence Ecotsi

The 2021 SEAT Arona Xcellence Ecotsi is a city car. Our records list a 999cc petrol engine, though engines vary between versions. 378 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. It sits in the bottom 25% of 2021 models for MOT pass rate.

With an average of 28,877 miles recorded at its 2024 MOT tests, SEAT Arona Xcellence Ecotsi owners cover more miles than the average driver.

2021 SEAT Arona Xcellence Ecotsi 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 £1,175 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2021 SEAT Arona Xcellence Ecotsi?

Total estimated annual running cost is £1,630 (£136/month), broken down as £1,175 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 SEAT Arona Xcellence Ecotsi

At 5 years old, the SEAT Arona Xcellence Ecotsi 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

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Coil Pack Failure

Medium risk

Smaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.

Service History

Low risk

Always 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 SEAT Arona Xcellence Ecotsi stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
SEAT Arona Xcellence Ecotsi(2021)	90%	£1,175	£200	Grp 1-8	£1,630
Ford Fiesta(2019)	91%	£1,175	£200	Grp 1-8	£1,630same
Volkswagen Golf(2019)	92%	£1,398	£200	Grp 12-25	£1,853+£223
Vauxhall Corsa(2019)	88%	£1,398	£200	Grp 8-20	£2,003+£373
MINI Cooper(2019)	92%	£1,398	£200	Grp 12-25	£1,853+£223

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2021 SEAT Arona Xcellence Ecotsi

Is the 2021 SEAT Arona Xcellence Ecotsi reliable?

Excellent reliability. Very few MOT failures. 90% of MOT tests on 2021 SEAT Arona Xcellence Ecotsis ended in a pass, from 378 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data.

How much does a 2021 SEAT Arona Xcellence Ecotsi cost to run?

Our estimate is £1,630 a year (£136 a month): £1,175 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 SEAT Arona Xcellence Ecotsi?

90% of 378 MOT tests on the 2021 SEAT Arona Xcellence Ecotsi ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2505th of 3,336 models first registered in 2021 (bottom 25%).

What is the average mileage for a 2021 SEAT Arona Xcellence Ecotsi?

The average mileage recorded at MOT tests on the 2021 SEAT Arona Xcellence Ecotsi is 28,877 miles, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.