Kia Stonic 2
Reliability, estimated running costs, and MOT data across 3 model years from 3,078 MOT tests in 2024.
Avg Pass Rate
92%
Total Tests
3,078
Highest Pass Rate
2020 (94%)
Years Covered
3
About the Kia Stonic 2
The Kia Stonic 2 was MOT tested 3,078 times in 2024 (DVSA data, retests included) across 3 model years (2020 to 2022), with an average pass rate of 92%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2020 model has the highest pass rate at 94% from 263 tests. The 2021 model has the lowest at 93%. With just a 1 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.
Mileage Across Years
The oldest model in our data (2020) averages 27,768 miles, while the newest (2022) averages 25,063 miles.
Compared to the Kia brand average of 86%, the Stonic 2 performs 6 points better, making it one of the more reliable options in the Kia range.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2022 detailsHow reliable is the Kia Stonic 2?
Kia Stonic 2 by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Kia Stonic 2
Is the Kia Stonic 2 reliable?
Across its 3 model years in our data (2020 to 2022), the Kia Stonic 2 averages a 92% MOT pass rate, from 3,078 tests (DVSA MOT data for tests in 2024, retests included). That's 10 points above the average of 82% across all models in the same data. The 2020 model has the highest pass rate of the years with at least 100 tests, at 94%.
Which year Kia Stonic 2 has the best MOT pass rate?
Of the years with at least 100 tests, the 2020 Kia Stonic 2 has the highest MOT pass rate at 94%, while the 2021 model has the lowest at 93%, a 1 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
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