Ford has confirmed that the new Focus ST will be available with a diesel engine, alongside the flagship turbocharged petrol.
When it goes on sale in the summer, customers will be able to order a Focus ST 2.0-litre EcoBlue diesel, with 190PS and 400Nm.
Fuel economy and emissions are yet to be revealed, but in the Mondeo the same 190PS EcoBlue engine emits from 131g/km.
The 2.3-litre petrol engine is more powerful, developing 280PS and 420Nm. It can accelerate from 0-60mph in less than six seconds - making this version the fastest Focus ST ever built.
Ford says the new Focus ST - based on the all-new car that launched last year - will be provide the best driving experience of any Focus ST.
It has lowered suspension, faster steering and larger brakes than a regular Focus, although Ford says ride comfort is not affected by the performance enhancements.
Exterior styling is enhances with new bumpers, alloy wheels and a rear spoiler. Inside, recaro seats complete the transformation.
Technology includes a head-up display, adaptive crusie control, park assist and selectable drive modes.
Ford’s eight-inch SYNC 3 infotainment system comes fitted as standard.
Prices and further specifications are expected to be announced closer to the car’s on sale date.