BMW I4 M50 (2021)
Running costs, common problems, and reliability data based on 92 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
92
Avg Mileage
30,691 mi
Est. Annual Cost
£1,095
Is the 2021 BMW I4 M50 reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 3 years old, 89% of BMW I4 M50s from 2021 passed their MOT first time in 2024. That's based on 92 tests across the UK. The average mileage at this age is 30,691 miles.
How does the 2021 BMW I4 M50 compare?
Mileage Analysis
The average 2021 BMW I4 M50 has 30,691 miles on the clock, 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.
Best year to buy a BMW I4 M50?
The most reliable year is the 2022 model with a 98% MOT pass rate, while the 2021 model has the lowest at 89%. Consider a different year if reliability is a priority.
How much does a 2021 BMW I4 M50 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.
Checking a specific BMW I4 M50?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 BMW I4 M50
The 2021 BMW I4 M50 is a electric with a 0cc electric engine. 92 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 82% of 2021 cars for MOT pass rates.
With an average of 30,691 miles at 3 years old, BMW I4 M50 owners cover more miles than the average driver.
What does it cost to own a 2021 BMW I4 M50?
Total estimated annual running cost is £1,095 (£91/month), broken down as £500 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 BMW I4 M50
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. Note: with only 92 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 BMW I4 M50
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 (-1%) from 39,444 tests
- JAGUAR I-PACE (2020) 96% pass rate (+7%) from 18,488 tests
- TESLA MODEL 3 STANDARD RANGE + (2021) 88% pass rate (-1%) from 15,258 tests
- TESLA MODEL 3 PERFORMANCE AWD (2020) 87% pass rate (-2%) from 12,320 tests