was considered unusual for an arcade game at the time. Since Grand Prix Legends, its publisher Image Space Incorporated has produced its own sims such as Sports Car GT in 1999 and the officially-licensed F1 series starting in 2000, all published by Electronic Arts. Unlike the Papyrus sims, the physics are easily modified, and many communities have been founded with the sole purpose of improving and updating MotorEngine-based games. One such community, Simbin, have created their own company and have released several games themselves, including GTR – FIA GT Racing Game, GT Legends, GTR 2, RACE – The Official WTCC Game, RACE 07, STCC – The Game, GTR Evolution, Race On and the Free-to-Play RaceRoom Racing Experience. Further developments (2003–present) In 2003, a 3-man team began developing Live for Speed. Phase 2 brought in many updates, including the first real cars (the BMW Sauber F1 car being included in those). The third phase of the content release cycle was launched in 2015, announcing the VW Scirocco and featuring the first real-world circuit, the Rockingham Motor Speedway. In 2004, rally fans received the first true rally sim with Richard Burns Rally, which to this day is still recognised by its community as the best rally sim available. Much like most sims from the graphic accelerator and modern era, the game is highly modifiable and has many third-party mods that introduce anything from new cars to new physics. In 2005, Image Space Incorporated released rFactor, a highly modifiable sim based on their Motor2 physics engine. Notable for its initial download-only distribution model, rFactor originally released with fictional cars and tracks. Thanks to its enthusiastic and ongoing modding community, the game has remained as one of the best racing sims around. In 2006, SimBin Studios released GTR 2 (itself a sequel to GTR – FIA GT Racing Game), a sports car racing simulator developed with input from the actual racing teams which took part in the FIA GT 2003 / 2004 seasons (FIA GT Championship). It has received widespread acclaim and has been noted for its high levels of technical and driving realism with regards to sports car racing. In 2006, Kunos Simulazioni released netKar Pro, a new version of netKar which aimed to bring together highly accurate physics and sound modeling as well as DirectX 9 graphics. Development tools for modifying NKP were announced, although the game is now considered obsolete due