This indie game is the work of students at the DigiPen Institute of Technology. I've never been big into racing games, nor have I ever heard of any such thing as a “survival racing game”… yet these kids from DigiPen seemed to have created a masterpiece. The graphics are beautiful, it’s like Tron ². Best of all it's free!
Download here: http://nitronic-rush.com/
View the Trailer: http://youtu.be/vNuSvuzPL10
P.S. I suggest playing in moderation, I had a dream about this game which dang near gave me tachycardia... fair warning!