FaultScore

Suzuki GSXR750 vs KIA K4

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 Suzuki GSXR750 KIA K4
Complaints on file 41 101
Model years covered 1999–2001 2025–2026
Worst model year
Best model year
Crashes reported 0 25
Fires reported 0 0
Injuries reported 1 16
Deaths reported 0 0
Most complained-about part Transmission & Drivetrain Driver Assist & Collision Avoidance
Share of complaints involving harm 2.4% 40.6%

Suzuki GSXR750 by year

99 00 01
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 3 7.3%
Suspension 2 4.9%
Body & Structure 1 2.4%
Acceleration & Cruise Control 1 2.4%
Fuel & Propulsion 1 2.4%

KIA K4 by year

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

What breaks

Other & Unspecified 14 13.9%
Electrical System 13 12.9%
Engine & Cooling 9 8.9%
Steering 8 7.9%
Transmission & Drivetrain 7 6.9%
Airbags 6 5.9%
Acceleration & Cruise Control 5 5.0%