Very bad story from Nicola Arena's Facebook profile.
Arena is the co-driver of Linari, the current leader of the production cup. Here is what he wrote.

Today we speak about Rally GB, last WRC round. Here are some incontrovertible facts:
Fact 1
The rally will be the last round of the Production Cup, open only to group N cars, that next year will be cancelled because of the poor number of followers.
Fact 2
Only three drivers can still win the Cup: Linari (my driver), Rendina (Italian as well) and Carchat (from Andorra).
Linari wins if he finishes the rally.
Rendina wins if he finishes in front of Carchat and we don't reach the finish line.
Carchat wins if he finishes in front of Rendina and we don't reach the finish line.
Fact 3
Last night our rally car was still on the trailer, someone broke the bonnet and poured sand into the engine making it unusable.
That's all with the facts. You can comment if you wish so.

What a stupid move. How will you enjoy your victory if you get it in this way? What's the purpose? Getting some money? They already have them... Sad story...