XP stands for experience, and you’ll earn XP points in every battle. In the 1.0 release of Rage on Wheels, your XP determines if you can join a certain tournament or staking pool, though it doesn’t affect which PvP and PvE battles you can participate in.
In the 2.0 release, XP points will be used to level up crafting skills. In the 3.0 version, we will introduce professions for users, also purchased for XP. Any XP points accumulated while playing Rage on Wheels 1.0 can be used at any point in the future, so we recommend that you take part in as many battles as possible to build up a good supply of XP for the future.