Need for Speed: ProStreet is a 2007 racing video game developed by EA Black Box and published by Electronic Arts. It is the eleventh installment in the Need for Speed series and a follow-up to Need for Speed: Carbon. Unlike its immediate predecessors, which focused on the contemporary illegal street racing scene, ProStreet focuses on legal circuit races that take place on closed tracks. The game blends elements of both sim and arcade racing games, requiring players to customize and tune cars for various race modes. Most races take place in real-world locations such as the Portland International Raceway, Mondello Park, and Autopolis.

Need for Speed: Carbon is a 2006 racing video game and the tenth installment in the Need for Speed series. Developed by EA Black Box, Rovio Mobile and published by Electronic Arts, it was released on October 31, 2006, for the PlayStation 2, PlayStation 3, Xbox, Xbox 360, GameCube, Windows, and Mac OS X, and on November 19, 2006 as a launch title for the Wii and in 2008 for arcade cabinets. The game sees players conducting illegal street races within the fictional city of Palmont City, with the game's main story taking place after the events of Need for Speed: Most Wanted and focusing on the player's character taking control of the city from various street-racing gangs. While the gameplay is similar to its predecessor, Carbon introduced a number of new features, including crews and racing wingmen, Touge-styled racing events, and greater customization options.