FaultScore

Chevrolet Impala (Gmx 211) vs Porsche 911 GT3

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 Chevrolet Impala (Gmx 211) Porsche 911 GT3
Complaints on file 27 67
Model years covered 2006–2006 2004–2018
Worst model year
Best model year
Crashes reported 3 5
Fires reported 0 2
Injuries reported 5 1
Deaths reported 0 0
Most complained-about part Electrical System Engine & Cooling
Share of complaints involving harm 29.6% 11.9%

Chevrolet Impala (Gmx 211) by year

06
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Electrical System 6 22.2%
Body & Structure 4 14.8%
Transmission & Drivetrain 3 11.1%
Windows, Mirrors & Wipers 3 11.1%
Engine & Cooling 2 7.4%
Seat Belts 2 7.4%
Other & Unspecified 2 7.4%
Airbags 1 3.7%

Porsche 911 GT3 by year

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

What breaks

Engine & Cooling 55 82.1%
Transmission & Drivetrain 4 6.0%
Other & Unspecified 2 3.0%
Steering 1 1.5%
Suspension 1 1.5%
Fuel & Propulsion 1 1.5%
Windows, Mirrors & Wipers 1 1.5%
Wheels 1 1.5%