I need some answers about WRC

[AnttiL]

Thanks for answers.

For first question, If driver wons national championships, will driver participate WRC? Is there something like that? or it's only about second questions answer.

No, there's no such rule because it's mostly about getting the money to drive in the main category.

There's also lower categories in the WRC such as WRC2 and WRC3 which use cheaper and less-powered Rally2 cars and then there's JWRC (Junior WRC) which uses even less powered FWD cars and you need be young enough to participate.

Then there's also the European championship ERC and other regional championships.