Originally Posted by DkknightX
We need to make something clear about Gran Turismo 5. It will not feature all of those cars right at initial launch. They will likely be available as add-on packs probably costing anywhere between $4.99 and $9.99 per car model. So be prepared to open up your wallets for what you want when it becomes available. Probably follow a Rock Band-type add-on format every week or something.
Yes there will be add on packs but not anything like rockband. Music games are the exception when it comes to DLC.