W300

The W300, or World 300, is a defunct championship series run on GrandPrixGames.org that was one of the predecessors to the GrandPrixGames Super League. The series, which was launched in 2006, folded along with its sister series WGP in mid-2008 due to administrative issues. It was then decided to streamline the two championships into the new GPGSL series. Two seasons were completed, while the third season was forever left incomplete due to the series demise.

Notable teams
Several teams from the W300 series later joined the GPGSL.
 * Team Shadow Junior (Tom Pellatt) - combined with WGP team to become known as Team Shadow.
 * Team Greidanus (Ruben Greidanus) - later was reborn as Greidanus Grand Prix.
 * Scuderia Minardi (Ricardo van Smirren) - remained known as Minardi before being renamed Van Smirren Motorsports.
 * Vivo RaltWest (Bruno Castelló) - remained known as RaltWest.

Key personnel
Many of the key administrators from the series went on to be involved with the GPGSL in similar or different positions.
 * Tom Pellatt
 * Ryan Gault
 * Rick Groeneboer
 * Nick van der Voort
 * Mal Stoddart