Using over 100,000 hand-made drawings and absolutely no CGI whatsoever, Redline spent seven years in production before its final release.
The blue car that the tarp was pulled off of with the diagonal white number 3 is drawn to be modeled after a Corvette C3.
This film was intended to premiere at the 2009 Annecy International Animated Film Festival and follow Summer Wars (2009), Mai Mai Miracle (2009), and Yona Yona Penguin (2009) as the fourth and final feature film Madhouse planned to release between summer 2009 and spring 2010. However, further delays resulted in the delay of its world premiere, pushed back a few months to August 14, 2009, at the Locarno International Film Festival and its Japanese release to fall 2010.
The PlayStation games series WipEout was a huge influence in the concept of the film.