International Prostar vs Yamaha YZFR1

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 International Prostar Yamaha YZFR1
Complaints on file 54 133
Model years covered 2008–2017 1998–2015
Worst model year 2013 —
Best model year 2012 —
Crashes reported 3 6
Fires reported 5 1
Injuries reported 5 7
Deaths reported 0 1
Most complained-about part Engine & Cooling Acceleration & Cruise Control
Share of complaints involving harm 24.1% 11.3%

International Prostar 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 16 29.6%
Electrical System 7 13.0%
Acceleration & Cruise Control 5 9.3%
Fuel & Propulsion 5 9.3%
Brakes 4 7.4%
Suspension 3 5.6%
Other & Unspecified 3 5.6%
Tires 2 3.7%

Yamaha YZFR1 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 24 18.0%
Electrical System 18 13.5%
Transmission & Drivetrain 13 9.8%
Fuel & Propulsion 9 6.8%
Body & Structure 7 5.3%
Other & Unspecified 5 3.8%
Suspension 2 1.5%