To reach 100% in your save file, you must master every aspect of the Horizon Festival: Championships : Complete all 168 Championships across the six primary destinations. Horizon Finale

You get the money and freedom without removing the reason to play.

If you are searching for the keyword, you likely fall into one of three categories:

: Complete all Bucket List Stunts (some may require specific locations).

Every road driven and every speed trap smashed.

100% complete save game for the Xbox 360 version of Forza Horizon 2 effectively bypasses an estimated 111-hour grind