Fh_x_2022.rar

Copy the cars and fonts folders located inside to assettocorsa\content .

RSS provides advanced physics updates, including custom tire textures, aero maps, and engine sound samples recorded from external cameras. FH_X_2022.rar

If you are working with the .rar file, it generally contains the content folder which needs to be extracted into your Assetto Corsa root directory. Copy the cars and fonts folders located inside