In the first instance the ESP works much the same way as the innovative system found in the base model Focus, although for the ST it is tuned to be non-intrusive to the driver. This standard mode supports the driver on all surfaces, whether dry, wet or snowy, giving them the confidence to drive safely no matter what the weather.
The driver can opt to select the second mode, called reduced or wide-slip mode, in which the traction control is turned off. Traction is handled by the driver here, while the ESP is programmed to intrude only as absolutely necessary.
Of course, the ESP system can also be switched off completely resulting in the Focus ST in its purest form, giving full control of the sublime chassis to the driver when is a position to exploit it, such as on a race track. Only the sub-features such as the Enhanced Dynamic Cornering Control (EDCC) remain active, optimising the enjoyment of the Focus ST’s abilities.