Pontiac Grand Prix vs Chevrolet Impala

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 Grand Prix	Chevrolet Impala
Complaints on file	7,303	15,232
Model years covered	1974–2008	1963–2020
Worst model year	1997	2000
Best model year	2008	1994
Crashes reported	478	932
Fires reported	1,013	477
Injuries reported	344	631
Deaths reported	32	7
Most complained-about part	Engine & Cooling	Electrical System
Share of complaints involving harm	25.6%	13.4%

Pontiac Grand Prix by year

1 2 2 3 4 3 2 119 202 249 242 158 185 306 245 116 1,064 618 500 588 427 410 137 624 209 365 323 199

74 77 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08

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

What breaks

Engine & Cooling 1,523 20.9%

Electrical System 943 12.9%

Brakes 930 12.7%

Steering 707 9.7%

Lights 683 9.4%

Transmission & Drivetrain 422 5.8%

Windows, Mirrors & Wipers 384 5.3%

Airbags 282 3.9%

Chevrolet Impala by year

1 4 2 5 1 2 2 2 3 1 1 6 19 64 120 2 4 4 1,128 959 1,077 935 1,375 811 803 932 1,203 1,368 737 844 422 467 1,021 436 178 138 88 41 26

63 66 67 69 77 79 81 82 83 85 87 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

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

What breaks

Electrical System 3,503 23.0%

Engine & Cooling 1,960 12.9%

Steering 1,227 8.1%

Brakes 975 6.4%

Stability & Traction Control 971 6.4%

Airbags 963 6.3%

Transmission & Drivetrain 945 6.2%

Lights 737 4.8%