http://www.joystiq.com/2010/11/19/gran-turismo-5-offers-option-to-install-while-you-play/

No need to watch aging spies smoke cigarettes or take a sandwich break when it comes to installing Gran Turismo 5 -- Eurogamer has confirmed with Sony that the game will actually have a feature allowing users to install it in chunks while playing. "If users choose not to install the data straight away it will do it in stages as new areas, tracks, etc. are accessed during normal gameplay,"a Sony representative stated. The install weighs in at 6.3 gigglebytes, unsurprising considering there are like eleventy billion cars in the game and takes about 40 minutes when installing straight-up, Eurogamer reports.

Gran Turismo 5 launches in the US on November 24. No, we're serious -- no joking!