Porsche 718 Cayman vs BMW 645CI
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 | Porsche 718 Cayman | BMW 645CI |
|---|---|---|
| Complaints on file | 29 | 72 |
| Model years covered | 2016–2025 | 2004–2006 |
| Worst model year | — | — |
| Best model year | — | — |
| Crashes reported | 0 | 0 |
| Fires reported | 1 | 4 |
| Injuries reported | 1 | 0 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Engine & Cooling | Airbags |
| Share of complaints involving harm | 6.9% | 5.6% |
Porsche 718 Cayman by year
What breaks
Engine & Cooling
7
24.1%
Seat Belts
5
17.2%
Transmission & Drivetrain
3
10.3%
Airbags
3
10.3%
Electrical System
2
6.9%
Lights
2
6.9%
Windows, Mirrors & Wipers
2
6.9%
Steering
1
3.4%