FaultScore

Plymouth Horizon vs Mercedes Benz GLS 450 4MATIC

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 Plymouth Horizon Mercedes Benz GLS 450 4MATIC
Complaints on file 31 77
Model years covered 1979–1990 2022–2025
Worst model year 2022
Best model year 2023
Crashes reported 1 18
Fires reported 2 1
Injuries reported 0 4
Deaths reported 0 0
Most complained-about part Fuel & Propulsion Driver Assist & Collision Avoidance
Share of complaints involving harm 9.7% 29.9%

Plymouth Horizon by year

79 80 84 85 86 87 88 89 90
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Fuel & Propulsion 5 16.1%
Transmission & Drivetrain 4 12.9%
Brakes 3 9.7%
Body & Structure 3 9.7%
Acceleration & Cruise Control 3 9.7%
Steering 2 6.5%
Tires 2 6.5%
Other & Unspecified 2 6.5%

Mercedes Benz GLS 450 4MATIC by year

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

What breaks

Driver Assist & Collision Avoidance 17 22.1%
Electrical System 10 13.0%
Other & Unspecified 10 13.0%
Engine & Cooling 9 11.7%
Brakes 7 9.1%
Transmission & Drivetrain 4 5.2%
Wheels 4 5.2%
Acceleration & Cruise Control 3 3.9%