At the Eurogamer Expo, the creative director for Rage has confirmed that the game will release on three discs for 360 and will have an 8GB install on PS3.
In an interview with Digital Foundry, Tim Willets also gave a rundown of the various installation options available for Rage players on 360.
“We recommend installing the game to the hard drive, but you don’t need to install all three discs. If you don’t have the space available on your hard drive, don’t stress. Install the first disc, the first chapter, the first half of the game, then when you’re done, uninstall and install disc two.”