Im assuming the current Engine Sounds will be changed in the release? IMO, better to use the Vanilla Sounds than the custom ones
Yeah because the sound is pretty old and a bit weird but I can ask to Phaien if he can make a new one soon.
https://www.beamng.com/threads/toyota-celica-gt4-st205-wrc.88793/#post-1513077 There you go guys you can see finally some progress.