FaultScore

GMC Sierra Classic vs Audi Q6 E-Tron

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 GMC Sierra Classic Audi Q6 E-Tron
Complaints on file 29 72
Model years covered 2003–2007 2025–2027
Worst model year
Best model year
Crashes reported 0 3
Fires reported 4 0
Injuries reported 0 1
Deaths reported 0 0
Most complained-about part Brakes Driver Assist & Collision Avoidance
Share of complaints involving harm 13.8% 5.6%

GMC Sierra Classic by year

03 04 07
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Brakes 14 48.3%
Fuel & Propulsion 4 13.8%
Engine & Cooling 3 10.3%
Transmission & Drivetrain 3 10.3%
Electrical System 3 10.3%
Steering 1 3.4%
Windows, Mirrors & Wipers 1 3.4%

Audi Q6 E-Tron by year

25 26 27
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 23 31.9%
Electrical System 19 26.4%
Transmission & Drivetrain 6 8.3%
Other & Unspecified 5 6.9%
Fuel & Propulsion 4 5.6%
Brakes 3 4.2%
Acceleration & Cruise Control 3 4.2%
Airbags 2 2.8%