Hi @sri ganesh
regarding feya climb . I have seen raptors not able to bring it to top while other less powered vehicle could , regardless , climbing tall dunes like feya entails practice with your own known vehicle so sooner or later you will find the way how to do it . What most important is to do it safely always. I have to admit that I had my own fear first time I did it and let go the gas .trick is you should build up the momentum and keep it either from the beginning or half way. Depends on your vehicle power and your approach ( you can reach it from middle straight up or riding the ridge up , this one slightly comes in later level maybe )
wish you best and safe drive 👍