As i said before, manufacturers coming has nothing to do with the cost but everything with the cost/profit ratio.
Not everything, there is branding values too. Manufacturers don't see thrashing a fossil fuel car in a reckless way as their brand. Except Toyota GR and Hyundai N. Fine in Asia obviously but not Europe.
World RX lurches from one crisis to the next.
KMS may have committed based on Red Bull being there, but hopefully they can find new sponsors with the Championship getting free live coverage on YT.
Evans https://youtu.be/ouRtqczlVbA?si=bhgNQ0ZtsXHSTs1S
WRC Testing