This article has a talk page!This page details bugs of Forza Horizon 2 (Xbox 360).
Credits Underflow Bug#
If the player tries to use the Fast Travel Anywhere feature whilst not having enough credits to do so, the game will still allow them to fast travel but the amount of credits they have will underflow to 999,999,999 (The maximum you can have). This will only work on the release version of the game, as it was fixed in a later update.
All you have to do is open the map, go to any location you want (except Festival sites), initiate a Fast Travel (whilst making sure the amount of credits you have is lower than the cost) and you're done. You'll find yourself in your desired location with a maxed out credits balance.