The portfolio of a former presentation director at one-time Need for Speed studio Black Box reveals a previously unknown and cancelled title in the car racing franchise called "Need for Speed 10" (the number referring to either fiscal or calendar year "2010") that was in development circa 2008. The portfolio page says the "goal" of the game was to answer the question "How can large scale street races take place in a post 911 US city?" Images on the page depict a group of street racers named the "TerrorFive" and a concept art mockup of gameplay wherein players seemingly hacked into police cars, things that sound more like Watch Dogs than a street racing game. Concept videos of prototype game's UI elements (one of which is embedded below) — created in collaboration with production houses Buck and Imaginary Forces — depict a lo-fi security camera aesthetic far removed from the polish typically associated with a Need for Speed game. However, it is unclear if Black Box's "Need for Speed 10" ever progressed beyond the prototype stage.

曾经的《极品飞车》工作室 Black Box 的一位前演示总监在其作品集中披露了一款之前不为人知且已取消的赛车游戏，名为 “极品飞车 10”（数字指的是财政年度或日历年度 “2010”，而不是正作NFS:Carbon），该游戏在 2008 年左右处于开发阶段。产品页面称，该游戏的 “目标 ”是回答 “如何在911后的美国城市中举行大规模街头赛车 ”这一问题。页面上的图片描绘了一群名为 “TerrorFive ”的街头赛车手，以及一个游戏玩法的概念模型，玩家似乎黑进了警车，这听起来更像是《看门狗》，而不是一款街头赛车游戏。原型游戏用户界面元素的概念视频）是与制作公司 Buck 和 Imaginary Forces 合作制作的，描述了一种低保真的监控摄像头美学，与通常的《极品飞车》游戏的精美程度相去甚远。不过，目前还不清楚黑盒工作室的该作的 “极品飞车 10 ”是否已经超越了原型阶段。