On February 24, 2017, the seventh-generation Fiesta ST was announced. It features an all-new 200 PS three-cylinder, 1.5-litre Ecoboost engine with turbocharger and cylinder deactivation technology. On March 12, 2018, Ford announced that a Quaife limited-slip differential would be offered for the first time on the Fiesta ST as part of an optional “Performance Pack”. The pack also includes a “ST” shift-change light in the instrument cluster and launch control
The all-new Fiesta ST also includes three selectable driving modes, a first for the model. These include “Normal”, “Sport”, and “Race Track”. Each mode changes the characteristics of the car, including the steering feel, throttle response, deactivating the engine ‘start-stop’ feature, and opening the flap in the exhaust, which increases the sound of the car