KIA EV9 vs Mazda RX-8
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 | KIA EV9 | Mazda RX-8 |
|---|---|---|
| Complaints on file | 412 | 1,004 |
| Model years covered | 2024–2026 | 2004–2011 |
| Worst model year | 2024 | 2004 |
| Best model year | 2025 | 2008 |
| Crashes reported | 5 | 35 |
| Fires reported | 2 | 17 |
| Injuries reported | 3 | 30 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Electrical System | Transmission & Drivetrain |
| Share of complaints involving harm | 2.4% | 8.2% |
KIA EV9 by year
What breaks
Electrical System
119
28.9%
Driver Assist & Collision Avoidance
61
14.8%
Other & Unspecified
45
10.9%
Suspension
22
5.3%
Wheels
21
5.1%
Steering
20
4.9%
Acceleration & Cruise Control
20
4.9%
Windows, Mirrors & Wipers
15
3.6%
Mazda RX-8 by year
What breaks
Transmission & Drivetrain
238
23.7%
Engine & Cooling
194
19.3%
Airbags
116
11.6%
Steering
112
11.2%
Fuel & Propulsion
72
7.2%
Electrical System
47
4.7%
Other & Unspecified
36
3.6%
Body & Structure
34
3.4%