Emulation: Players on PC use the ISO file to run the game through emulators like Xenia. This allows for higher resolutions and more stable frame rates than the original hardware could provide.
: ISOs usually do not include DLC. You must have the DLC files separately and place them in Xenia's content folder to access the Rally Expansion or additional cars. If you'd like to get started, tell me: Do you already have the ISO file , or What are your PC specs (specifically your GPU and CPU)? Forza Horizon 1 Iso