Drag and drop carfix.dll / carfix (New Hotkeys).dll into your scripts folder

Q: Should i choose "carfix.dll" or "carfix (New Hotkeys).dll"

A: With "carfix.dll" you can only press "K" for fixing the car.
   With "carfix (New Hotkeys).dll" You can press "K" for fixing the car, "L" for killing the engine, And "J" for bursting all the tires.