FaultScore

Smart Fortwo Cabrio vs Mercedes Benz B-Class Electric

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 Smart Fortwo Cabrio Mercedes Benz B-Class Electric
Complaints on file 36 90
Model years covered 2008–2009 2014–2016
Worst model year 2015
Best model year 2016
Crashes reported 3 0
Fires reported 5 0
Injuries reported 3 0
Deaths reported 0 0
Most complained-about part Electrical System Transmission & Drivetrain
Share of complaints involving harm 30.6% 0%

Smart Fortwo Cabrio by year

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

What breaks

Electrical System 11 30.6%
Transmission & Drivetrain 8 22.2%
Engine & Cooling 3 8.3%
Windows, Mirrors & Wipers 3 8.3%
Body & Structure 2 5.6%
Seat Belts 2 5.6%
Airbags 1 2.8%
Lights 1 2.8%

Mercedes Benz B-Class Electric 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 17 18.9%
Electrical System 13 14.4%
Fuel & Propulsion 13 14.4%
Acceleration & Cruise Control 7 7.8%
Other & Unspecified 5 5.6%
Steering 3 3.3%
Brakes 3 3.3%