Mercedes Benz C320 vs Infiniti Q50

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 Mercedes Benz C320 Infiniti Q50
Complaints on file 303 743
Model years covered 2001–2007 2014–2023
Worst model year 2001 2014
Best model year 2004 2016
Crashes reported 17 67
Fires reported 9 10
Injuries reported 8 26
Deaths reported 1 3
Most complained-about part Electrical System Steering
Share of complaints involving harm 11.6% 14.3%

Mercedes Benz C320 by year

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

What breaks

Seats 46 15.2%
Airbags 18 5.9%
Lights 17 5.6%
Fuel & Propulsion 16 5.3%
Windows, Mirrors & Wipers 14 4.6%
Transmission & Drivetrain 13 4.3%

Infiniti Q50 by year

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

What breaks