Hello, I just played again today.
-For the sound it is necessary to modify in the options THE MOTOR and the COPILOT for each rally differ (Spain, Monte Carlo, Finland, England). The sound settings are not the same for each country. Also the volume of the co-pilot's voice was not stable during the lap times.
Since this update very big problems of his co-pilot / engine ......
I'm on Ps4 and I'm playing against the clock.
I am in France