There will be dlc, this is a cashcow and Sony will milk it for all they are worth.
I understand the concept... but they will milk it if the cow has milk...
...meaning that they will do it if you guys allow them to do it...

that's what i mean...
Not sure where all of these 'No DLC for GT5' claims are sprouting from, but he's already hinted at one possible DLC pack and that's motorbikes - that entirely rides on (no pun intended) how large the demand is. Just as the entire topic of DLC itself, if people want it and are willing to pay for PD would be a couple of fools to not release DLC packs monthly, bi-monthly, tri-monthly, etc.
For those who don't want it, don't want to spend the money, consider DLC to be some divine evil from below - don't buy it. Simple, right?
I am not totally against the idea of DLC.... for example...
i find it interesting that, based on what you said above (which i didn't know), if Kaz were to release a DLC for GT5 for exclusively motorcycle... i think that would be cool for you two-wheelers crazes, and i would understand that Kaz would charge for it... and if i were to like motorcycles as much as cars, i would buy it... but since i am not, then i would not...
So far so good... we are on the same page...
But if it was a DLC for cars... NO... (the way Forza does), then in that specific case, i am not ok at all... because cars are the core content, the heart of GT5, and if they start selling extra cars , then they are basically holding us hostage, forcing us to pay by the units, which they can do...
i dont want it to become like that...
What is supposed to be the content of a full game, should NOT be paid DLC.
What is extra and only an enhancement for the game, can be a paid DLC.
That's what i would think should be the line drawn for what can be paid or not paid DLC.
They will do whatever they can, if you allow them to...