BMW I4 vs Mazda Millenia
Both cars' complete complaint records, side by side.
Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.
| Measure | BMW I4 | Mazda Millenia |
|---|---|---|
| Complaints on file | 136 | 338 |
| Model years covered | 2022–2024 | 1991–2003 |
| Worst model year | 2023 | 1995 |
| Best model year | 2022 | 1996 |
| Crashes reported | 38 | 33 |
| Fires reported | 3 | 2 |
| Injuries reported | 10 | 31 |
| Deaths reported | 0 | 2 |
| Most complained-about part | Electrical System | Engine & Cooling |
| Share of complaints involving harm | 37.5% | 20.1% |
BMW I4 by year
What breaks
Electrical System
24
17.6%
Other & Unspecified
21
15.4%
Driver Assist & Collision Avoidance
19
14.0%
Transmission & Drivetrain
17
12.5%
Brakes
11
8.1%
Acceleration & Cruise Control
7
5.1%
Fuel & Propulsion
7
5.1%
Engine & Cooling
6
4.4%
Mazda Millenia by year
What breaks
Engine & Cooling
73
21.6%
Transmission & Drivetrain
49
14.5%
Airbags
35
10.4%
Electrical System
25
7.4%
Suspension
16
4.7%
Other & Unspecified
16
4.7%
Fuel & Propulsion
14
4.1%
Windows, Mirrors & Wipers
13
3.8%