Well a lot of the press photos show the yellow but Middlehurst say that this colour isn't going into production. May be their will be a GT5 version when sony finally get round to releasing the game.
No info official yet so basically all the info Middlehursts have got is just by looking on the internet. At the mo their are three choices of interior. Black Orange (pictured) and maybe the very pale grey. Out of someof the imaghes they showed us the Titanium looked