Ford Focus vs Ford Mustang
Compact car · 2015–2020 · 5,279 federal complaints
Ford Focus
3,815 complaints · 4 engines
Most-complained engine: GDI · 2.0L I4
Full breakdown for Ford Focus →
Ford Mustang
1,464 complaints · 4 engines
Most-complained engine: 4VPREMIUMFUEL · 2.3L I4
Full breakdown for Ford Mustang →Side by side
Both cars scored as percentiles within Compact car, so the shapes are directly comparable. Built from EPA test data.
Ford FocusFord Mustang
What each one's complaints are about
Showing each car's highest-volume engine. Share of component mentions — not a failure rate, and not a ranking between the two.
Ford Focus
3,072complaints
Transmission & drivetrain 43%Engine 12%Fuel system 11%
Ford Mustang
762complaints
Engine 16%Electrical 13%
One car having more complaints than the other mostly reflects how many were sold, not how often they break. Compare each car's own mix of problems — not the totals.