HOW TO CREATE CUSTOM SOUND SETS?

* Create new folder and name it whatever you 
  would like to call your sound set.
* Put these 6 files in that folder.
  - Damage.wav     Played when cars hit something.
  - Ding.wav       Played on start and when last lap begins.
  - Engine.wav     Default engine sound.
  - Skid.wav       Skid sound.
  - Yeah.wav       Played when someone wins a race.
( - Fuel.wav       Played when players car is running out of fuel. )
* You can use different engine sound for each car.
  - General.wav    Engine sound for car named "General"
  - Formula.wav    Engine sound for car named "Formula"
  - ...
