Somewhere between 9-10 mil.

Probably between 7-9 million. So let's make that 8 million ;) The reason why I think it won't be the highest selling game of the series is because some of the racing fans bought a 360 instead, because it took too long before GT5 was released and won't also get a PS3.

4-6 million unless bundled

Less than Halo:Reach

Japan - 1mil
NA - 3 mil
Others - 5mil

9mil LTD.

10 million LTD....
15 million is a little bit too much since the NA fanbase of GT is virtually gone.

Not Bundled - 8-10 Million

Bundled - 13-15 Million or more depending on how heavily bundled.

JP: 700k
NA: 2.7m
EU: 4.3m
AS: 100k

Total: 7.8m

7m LTD would be more reasonable IMHO.

It'a an FPS generation.

And it's 2Xm PS3 on the market, not 1XXm

Japan: 1M

NA: 3M

Others: 5M

Total: 9M