Hypothetical: Could GT6 outsell Halo 4?

[dsage01]

First off Halo Reach and GT5 sales aren't even are fair comparison:
- Reach only sold in 2011 and 2012 due to extensive bundling with 4 other games. But since we do not know how much it sold in bundles we can't assume GT5 sold more standalone copies

- GT5 was bundled maybe once and is outselling Reach by a large margin on a weekly basis despite Halo Reach being bundled like hell.

Now for GT6 vs Halo 4:
We have no information at all about GT6 whereas Halo 4 is getting a large amount of hype at the moment due to its launch being only a couple weeks away. If GT6 comes too late in the PS4 cycle it will struggle to sell 7.5 million copies and Halo 4 coming in at around this time should make it get 10 million copies.

A real comparison would be GT6 and Halo 5 as both launch titles and in that case there would be many factors for example:
- Which console is selling better
- The quality of the game etc.

So in reality this an unfair comparison that makes no sense at all
Note: To the people that are comparing Forza to GT lets start comparing Killzone to Halo