Rally Casentino, the warm-up for Rally di Roma, went ahead ok and winner Crugnola will be a strong contender in Rome.
I think these guys should just go to WRC2, competitionally they're just in no-man's land driving a WRC car miles behind the factory cars. Besides, Bertelli
Østberg in Rally Sweden 2011 6.5sec behind Hirvonen
Duval in germany 2007 comes to mind.
It hasn't happened a lot, because even if you somehow would be able to get the same car as the factory
2016 Rally Mexico - Benito Guerra.
Maybe not challenging, but he brought a big local audience to watch him in a WRC car.