FaultScore

Pontiac Fiero vs KIA Optima Hybrid

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 Pontiac Fiero KIA Optima Hybrid
Complaints on file 163 406
Model years covered 1984–1996 2011–2020
Worst model year 2012
Best model year 2015
Crashes reported 2 31
Fires reported 18 21
Injuries reported 4 18
Deaths reported 0 0
Most complained-about part Engine & Cooling Engine & Cooling
Share of complaints involving harm 14.7% 17.2%

Pontiac Fiero 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 90 55.2%
Brakes 22 13.5%
Electrical System 19 11.7%
Transmission & Drivetrain 9 5.5%
Other & Unspecified 5 3.1%
Fuel & Propulsion 4 2.5%
Suspension 2 1.2%
Acceleration & Cruise Control 2 1.2%

KIA Optima Hybrid 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 150 36.9%
Brakes 35 8.6%
Steering 20 4.9%
Acceleration & Cruise Control 17 4.2%
Fuel & Propulsion 15 3.7%