Porsche 911 vs Nissan D21

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	Porsche 911	Nissan D21
Complaints on file	188	466
Model years covered	1983–2025	1988–1997
Worst model year	1995	1995
Best model year	2002	1996
Crashes reported	7	66
Fires reported	10	16
Injuries reported	8	35
Deaths reported	0	1
Most complained-about part	Engine & Cooling	Body & Structure
Share of complaints involving harm	13.3%	25.3%

Porsche 911 by year

2 1 2 1 2 1 2 15 9 3 4 12 7 8 10 12 10 4 8 7 5 13 2 3 1 2 9 5 13 5 8 2

83 84 87 88 90 91 92 95 96 97 98 99 00 01 02 03 04 05 12 13 14 15 16 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

Engine & Cooling 52 27.7%

Electrical System 27 14.4%

Fuel & Propulsion 14 7.4%

Transmission & Drivetrain 11 5.9%

Airbags 10 5.3%

Lights 10 5.3%

Other & Unspecified 10 5.3%

Body & Structure 9 4.8%

Nissan D21 by year

1 5 1 35 21 49 76 159 47 72

88 89 90 91 92 93 94 95 96 97

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

What breaks

Body & Structure 69 14.8%

Engine & Cooling 47 10.1%

Tires 43 9.2%

Transmission & Drivetrain 40 8.6%

Airbags 36 7.7%

Seat Belts 36 7.7%

Brakes 34 7.3%

Electrical System 33 7.1%