Simplify the following text for a Grade 12 native English-speaking person.
Original: The Formula 3000 International Championship was a motor racing series created by the FÃ dÃ ration Internationale de l'Automobile ( FIA ) in 1985 to become the final preparatory step for drivers hoping to enter the Formula One championship .
Simplified: The International Formula 3000 was introduced by the FÃ dÃ ration Internationale de l'Automobile ( FIA ) in 1985 to replace Formula Two , and was itself replaced by the GP2 Series in 2005 .