The plot revolves around the player's avatar, who is offered the chance to enter a series of tournaments and progresses through the game in order to eventually become the winner of the Solar Crown by defeating a number of NPCs (non-player characters) in various races. The vehicle subcategory is noted in the form of a number the lower the number, the higher the quality. The game features three main vehicle categories, with each vehicle also belonging to a subcategory depending on quality - A for asphalt cars (A7 to A1), B for Off-road vehicles (B4 to B2), which is a new feature in TDU2, and C for classic cars (C4 to C1) with an additional M category for motorcycles. Test Drive Unlimited 2 includes a variety of roads on the island of Oahu, which returns from the first game, and the new island Ibiza. Test Drive Unlimited 2 is an open world racing video game developed by Eden Games and published by Atari for Microsoft Windows, PlayStation 3 and Xbox 360.