KIA NIRO 4 + EV (2021)
Running costs, common problems, and reliability data based on 11,606 real MOT tests in 2024.
MOT Pass Rate
93%
Total Tests (2024)
11,606
Avg Mileage
34,845 mi
Est. Annual Cost
£945
Is the 2021 KIA NIRO 4 + EV reliable?
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the KIA brand average of 86%.
At 3 years old, 93% of KIA NIRO 4 + EVs from 2021 passed their MOT first time in 2024. That's based on 11,606 tests across the UK. The average mileage at this age is 34,845 miles.
How does the 2021 KIA NIRO 4 + EV compare?
Mileage Analysis
The average 2021 KIA NIRO 4 + EV has 34,845 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
Best year to buy a KIA NIRO 4 + EV?
The most reliable year is the 2022 model with a 95% MOT pass rate, while the 2020 model has the lowest at 93%. The 2021 sits between the two at 93%.
How much does a 2021 KIA NIRO 4 + EV cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
KIA NIRO 4 + EV by Year
Checking a specific KIA NIRO 4 + EV?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 KIA NIRO 4 + EV
The 2021 KIA NIRO 4 + EV is a electric with a 0cc electric engine. 11,606 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 34,845 miles at 3 years old, KIA NIRO 4 + EV owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
What does it cost to own a 2021 KIA NIRO 4 + EV?
Total estimated annual running cost is £945 (£79/month), broken down as £500 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
KIA NIRO 4 + EV Reliability Trend
The KIA NIRO 4 + EV has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 KIA NIRO 4 + EV
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. If you're flexible on year, the 2022 model has the highest pass rate at 95%. With 11,606 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2021 KIA NIRO 4 + EV
If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable electric cars with similar engines:
- TESLA MODEL 3 LONG RANGE AWD (2021) 88% pass rate (-5%) from 39,444 tests
- JAGUAR I-PACE (2020) 96% pass rate (+3%) from 18,488 tests
- TESLA MODEL 3 STANDARD RANGE + (2021) 88% pass rate (-5%) from 15,258 tests
- TESLA MODEL 3 PERFORMANCE AWD (2020) 87% pass rate (-6%) from 12,320 tests