In comparison to the regular Ford Focus the ST features a more aggressive exterior design, including a redesigned front bumper with larger air intakes and grille, larger rear wing, wider side sills, center exit exhaust, and alloy wheels. Inside, the car receives a trio of additional gauges mounted in the dashboard, faux-carbon fiber trim, and sport seats with body colored inserts and stitching.

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For the facelift for the 2015 model year, the ST continues with the 250 PS 2.0 litre Ecoboost. It also remains as a 5-door hatchback, and an estate (wagon). For the first time, a 2.0 litre TDCi Duratorq Diesel engine debuts in the ST. In the ST it produces 185 PS, and 400 newton metres of torque. Pricing and badging is the same for both petrol and diesel models.