Mini Cooper Convertible vs Buick Rainier

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	Mini Cooper Convertible	Buick Rainier
Complaints on file	216	525
Model years covered	2005–2026	2003–2007
Worst model year	2005	2004
Best model year	2006	2007
Crashes reported	3	33
Fires reported	9	24
Injuries reported	6	14
Deaths reported	0	0
Most complained-about part	Steering	Electrical System
Share of complaints involving harm	8.3%	13.5%

Mini Cooper Convertible by year

115 38 7 10 27 15 3 1

05 06 07 08 09 16 25 26

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

What breaks

Steering 92 42.6%

Airbags 36 16.7%

Electrical System 18 8.3%

Engine & Cooling 14 6.5%

Transmission & Drivetrain 14 6.5%

Seats 10 4.6%

Lights 6 2.8%

Other & Unspecified 5 2.3%

Buick Rainier by year

1 205 158 117 44

03 04 05 06 07

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

What breaks

Electrical System 147 28.0%

Fuel & Propulsion 93 17.7%

Lights 57 10.9%

Transmission & Drivetrain 28 5.3%

Suspension 25 4.8%

Engine & Cooling 22 4.2%

Airbags 22 4.2%

Windows, Mirrors & Wipers 22 4.2%