Mazda RX-7 vs KIA Niro
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 | Mazda RX-7 | KIA Niro |
|---|---|---|
| Complaints on file | 205 | 503 |
| Model years covered | 1987–1995 | 2017–2026 |
| Worst model year | — | 2017 |
| Best model year | — | 2025 |
| Crashes reported | 6 | 48 |
| Fires reported | 50 | 14 |
| Injuries reported | 5 | 35 |
| Deaths reported | 0 | 2 |
| Most complained-about part | Engine & Cooling | Engine & Cooling |
| Share of complaints involving harm | 29.8% | 19.7% |
Mazda RX-7 by year
What breaks
Engine & Cooling
60
29.3%
Fuel & Propulsion
36
17.6%
Seat Belts
33
16.1%
Electrical System
26
12.7%
Body & Structure
7
3.4%
Brakes
6
2.9%
Tires
6
2.9%
Other & Unspecified
5
2.4%
KIA Niro by year
What breaks
Engine & Cooling
87
17.3%
Transmission & Drivetrain
80
15.9%
Electrical System
80
15.9%
Other & Unspecified
67
13.3%
Brakes
32
6.4%
Fuel & Propulsion
29
5.8%
Airbags
19
3.8%