BMW 330I vs Pontiac Bonneville

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 330I	Pontiac Bonneville
Complaints on file	1,076	2,580
Model years covered	2001–2025	1977–2005
Worst model year	2006	1998
Best model year	2005	2004
Crashes reported	42	135
Fires reported	52	180
Injuries reported	35	117
Deaths reported	3	0
Most complained-about part	Airbags	Engine & Cooling
Share of complaints involving harm	12.3%	16.7%

BMW 330I by year

159 57 92 139 42 303 55 39 56 67 44 6 4 9 4

01 02 03 04 05 06 17 18 19 20 21 22 23 24 25

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Airbags 259 24.1%

Lights 162 15.1%

Electrical System 131 12.2%

Engine & Cooling 130 12.1%

Other & Unspecified 60 5.6%

Transmission & Drivetrain 45 4.2%

Windows, Mirrors & Wipers 33 3.1%

Steering 32 3.0%

Pontiac Bonneville by year

1 4 2 2 1 1 2 3 24 20 35 45 26 139 183 123 330 181 188 359 176 301 179 113 67 38 37

77 78 79 81 82 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 615 23.8%

Electrical System 324 12.6%

Brakes 256 9.9%

Steering 218 8.4%

Transmission & Drivetrain 171 6.6%

Fuel & Propulsion 169 6.6%

Airbags 150 5.8%

Windows, Mirrors & Wipers 133 5.2%