It is quite easy to control the cars in EA Sports WRC with a ps5 controller. Check out these Dualshock 5 controller settings.

H2 FWD Category
VW Golf GTI
Tarmac - 1:02
Gravel - 1:07
Snow - 1:12

World Rally 1997 - 2011 Category
Subaru Impreza 08
Tarmac - 1:20
Gravel - 1:25
Snow 1:31

Group B RWD Category
Porsche 911 SC RS
Tarmac - 1:38
Gravel - 1:44
Snow - 1:48

Rally 1 Category
Toyota Yaris GR Hybrid
Tarmac -1:57
Gravel - 2:01
Snow - 2:06