Forest River Sierra vs BMW M340I
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 | Forest River Sierra | BMW M340I |
|---|---|---|
| Complaints on file | 36 | 90 |
| Model years covered | 2002–2021 | 2020–2022 |
| Worst model year | — | — |
| Best model year | — | — |
| Crashes reported | 2 | 0 |
| Fires reported | 2 | 0 |
| Injuries reported | 1 | 0 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Body & Structure | Engine & Cooling |
| Share of complaints involving harm | 13.9% | 0% |
Forest River Sierra by year
What breaks
Body & Structure
9
25.0%
Tires
6
16.7%
Equipment & Accessories
6
16.7%
Other & Unspecified
5
13.9%
Suspension
4
11.1%
Electrical System
3
8.3%
Engine & Cooling
1
2.8%
Brakes
1
2.8%
BMW M340I by year
What breaks
Engine & Cooling
50
55.6%
Other & Unspecified
10
11.1%
Electrical System
9
10.0%
Transmission & Drivetrain
6
6.7%
Fuel & Propulsion
4
4.4%
Brakes
3
3.3%
Steering
2
2.2%
Suspension
2
2.2%