I calculated the old system (2023) with this year final results and it is confirmed that Neuville would still take the title.
Neuville |211
Evans |194
Tanak |176
Ogier |171
Fourmaux |136
Rovanpera|117
Katsuta |94
Munster |50
Sordo |43
Lappi |31
Mikkelsen |29
2023 point sstem
->18, 15, 13, 10, 8, 6, 4, 3, 2, 1 - saturday standings (must finish the rally to score)
->7, 6, 5, 4, 3, 2, 1 - sunday standings
->5, 4, 3, 2, 1 - power stage standings