FaultScore

Smart Fortwo vs Hyundai Sonata Hybrid

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 Hyundai Sonata Hybrid
Complaints on file 475 1,162
Model years covered 2005–2019 2011–2026
Worst model year 2008 2013
Best model year 2017 2024
Crashes reported 28 67
Fires reported 68 34
Injuries reported 22 41
Deaths reported 1 0
Most complained-about part Engine & Cooling Engine & Cooling
Share of complaints involving harm 25.1% 12.2%

Smart Fortwo 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 106 22.3%
Seat Belts 35 7.4%
Brakes 20 4.2%

Hyundai Sonata Hybrid by year

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

What breaks