CarCostCheck

Kia Stonic maxx

Reliability, running costs, and MOT data across 2 years from 1,192 real MOT tests.

Avg Pass Rate

93%

Total Tests

1,192

Best Year

2019 (93%)

Years Covered

2

How reliable is the Kia Stonic maxx?

vs national average+11% (82% avg)
vs Kia brand average+7% (86% avg)
Best to worst year spread1 percentage points

Kia Stonic maxx by Year

YearPass RateTestsAvg Mileage
202092%77526,987 mi
201993%41731,634 mi

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About the Kia Stonic maxx

The Kia Stonic maxx has been tested 1,192 times in 2024 MOT data across 2 model years (2019 to 2020), with an average pass rate of 93%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.

Best and Worst Years

The 2019 model is the most reliable with a 93% pass rate from 417 tests. The 2020 model has the lowest at 92%. With just a 1 point spread, the Stonic maxx is consistently reliable regardless of year.

Mileage Across Years

The oldest model in our data (2019) averages 31,634 miles, while the newest (2020) averages 26,987 miles.

Compared to the Kia brand average of 86%, the Stonic maxx performs 7 points better, making it one of the more reliable options in the Kia range.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.