EA Sports WRC will not recognise the VNM Direct Drive Firmware out of the box. Support needs to be added manually, as follows:

Find the game installation directory, go to EA SPORTS WRC\WRC\Content\input\Windows\devices and edit the file: device_defines.xml.

Add the following line to the end of the list

<device id="{A3D50483-0000-0000-0000-504944564944}" name="vnm_direct_drive" priority="100" type="wheel" official="false"/>