FaultScore

Chevrolet C30 vs BMW X4

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 Chevrolet C30 BMW X4
Complaints on file 55 137
Model years covered 1975–1998 2015–2025
Worst model year 2015
Best model year 2016
Crashes reported 13 17
Fires reported 1 8
Injuries reported 5 4
Deaths reported 3 0
Most complained-about part Brakes Engine & Cooling
Share of complaints involving harm 40% 21.2%

Chevrolet C30 by year

75 76 77 84 86 87 88 90 91 92 93 94 95 96 97 98
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Brakes 29 52.7%
Fuel & Propulsion 6 10.9%
Body & Structure 3 5.5%
Tires 3 5.5%
Engine & Cooling 2 3.6%
Seat Belts 2 3.6%
Seats 2 3.6%
Transmission & Drivetrain 1 1.8%

BMW X4 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 27 19.7%
Brakes 14 10.2%
Other & Unspecified 14 10.2%
Transmission & Drivetrain 11 8.0%
Driver Assist & Collision Avoidance 8 5.8%
Airbags 7 5.1%
Suspension 6 4.4%