Maybe under the current and maybe future economic status of the world would be to drop WRC17-20 cars now. And go R5/Rally2 as top class until 2022 or maybe 2023. As it look today, maybe 23 is the best option.

A lot of money saved for factory teams, that also can use their smaller budget to develop the next gen Rally1 cars, and test them well.

For drivers, they will get a possibility to compete with the best drivers and teams in same material. New talent will have thei chance to shine.
FIA need of course to keep the current joker system, so the factories will go bananas in development. And the few jokers need to be made for all.

If done this way, the new Rally1 will be a very exiting car, both for drivers and fans.
We easily forget!!!!!