Bah, there is no guarantee it'll even outsell Forza 3. Or that it'll even be better.

Europe doesn't exist, SO THERE!

Actually,  I thought it was bundled for free at one point and you say it wasn't? Or there was an option of bundles? Or people had to pay more?

It depends, really.

Let's look at trends.

Halo 3 > Halo 2 > Halo 1. Nice, simple.

GT3>GT1>GT4>GT2. However, GT3 was bundled a fair bit, while GT4 received no bundling at all. Halo 3 will probably overtake GT4 by the end of this gen, even taking into account the fact that it is undertracked (Polyphony stated they'd shipped over 10 million, I doubt there are 410k copies of a five year old game lying around on shelves)

Opening week will definitely go to Halo 3. I can see GT5 doing around 3 million, but won't come near Halo 3's 4 million. Of course, more than 3/4 of that opening week was in America, while GT will be more spread out: I would say a million in America, million and a half in Others, half a million in Japan.

I would say that LT sales will go to Halo 3 as well, but not by much. People throw around GT4P's sales and GT4's sales. Well, GT4P wasn't on the market for nearly as long as GT5P, and it wasn't even released in Europe. GT3 may have launched on a 10 million userbase, but it was on a system with Wii-level weekly sales, and as I mentioned, it was bundled.

GT5 will probably be bundled as well, but the PS3 will only reach around half of the PS2's userbase. It's not simple arithmetic, because attach rates decrease with increasing userbase.

So I would say 10.5 million for Halo 3, 9 million for Gran Turismo 5. Excellent sales, but not Halo level.

If the PS4 is a runaway success, like the Wii or PS2, I could see GT6 cracking 10 million easily. But judging by Polyphony Digital's recent behaviour, we can expect that in around 2021

so when did halo 3 get pulled off of the shelves?  I'm pretty sure it's still available to buy, if I'm not mistaken.  So, when we are talking life to date numbers, yes, I will use the current console numbers because believe it or not, people have bought 360's since halo 3 came out and yes, they bought halo 3.

so yes, I am telling you that halo 3 can do that and gran turismo can't.  Unlike gran turismo, the halo brand has proved that it can sell on a low user base (original xbox and halo 1 and 2).  Look at those numbers and just guess at how many copies of halo 1 or 2 would be sold if the original xbox had 140 million consoles sold.  Doesn't that make sense?  If you ad an extra 120 million people to the equation, don't you think at least 10% would want to get the most popular game for the system?  I actually think it would be more that 10%, but you get my point.  That would add another 12 million copies to those games sold.  The same sort of phenomenon is what bolstered the gran turismo's sells

However, lets agree to disagree.  I'm not going to convince you and you aren't going to convince me.  When the numbers come in though, I will have to give you an "I told you so" message :)

GT is Halo and Forza is Killzone, in this instance.

I wouldn't be surprised if GT5 doubled Forza 3's sales.

One of them is coming off a 4.5 million seller, one is coming off a ten million seller. Hmm...

Er...no. You think the PS3 is going to sell 30 million units in its lifetime?

Sorry, but this one is impossible. No way GT5 sells more than 10m - 12m copies once the PS3 is finished, Halo 3 will probably end near 15m.

GT5 will be lucky to sell 5 million worldwide.... sad but it's the truth

I used to love Racing Sims and I own my fair share of them including 3GT games and 2 Forza's. This being said, I think that the general population is losing interest in Racing Games. Look at the recent trend in gaming, its all about FPS or Third Person Shooters and things don't seem to be changing much. I am also guilty of this, I haven't played any of my racing games for months.

With that being said, I don't see how GT5 could possibly outsell Halo3. GT5 will probably top out around 7 million if they bundle it which is an ungodly number really and why does it even matter if it doesn't beat H3? I am sure GT5 will be a good game and that is all that should matter.

You PWNED that guy