The car has been created by TeamRS, the company’s dedicated performance vehicle arm, and has a number of exterior and interior styling tweaks.
It is still powered by the familiar punchy 225bhp 2.5 litre turbocharged five-cylinder Duratec engine, which means it will hit 150mph and reach 62mph in 6.8 seconds.
The standard production Focus ST has completed a lap of the Nordschleife in 8 minutes 35 seconds.
A powerful braking system is top of this list while Electronic Stability Programme (ESP) and Traction Control are now standard on all versions.
Externally the new ST gets different 18-inch five-spoke alloy wheels and a restyled front.
For the launch Ford has wheeled out a particularly lairy-looking white version with blue viper stripes.