NO GT5 won't sell as good as MW2 on PS3 first week.
Like MW2 on 360 even smashed Halo 3's first week, MW2's success is unrepeatable.

Looking at recent sales, that may be true for racers in general in NA.

No, Gears 2 hasn't.

Gears 1 was only timed x360 exclusive. Anyway, even if you add x360 console exclusives(+3), the picture won`t change much.

Uhh no this is impossible, for one reason and one reason alone. GT5 doesn't have a WW release date. Japan is march, and other regions are yet to be decided. But expect america's and europe and asia to have slightly different dates (probably by a couple days or week at the max).

MW2 had something like 4mil in preorders, that's just astonishing, i don't think any game will top MW2 in First day or week 1 sales in this generation.

Gran Turismo is not Modern Warfare, I'm afraid. Three years ago I would have been ridiculed for saying that.

It could manage 2.5-3 million first week, though.

Oh I see what you did now. I didn't realize you were using that logic. Also if an exclusive sold 3M shouldn't it still show up in 2M and so on since it had to pass that number?

@Godbless

I believe that's how he did it.

You see that:

1M:
Halo 3

2M:
Halo 3

3M:
Halo 3

5M:
Halo 3

10M:
Halo 3

In reality still only ONE game. It`s not 5 games, that passed marks, it`s only ONE.

3 million is out of the question. So no, it won't do 3 mill+ week one but it should manage 2+mill.