No, I completely understand that GT has flaws. And I'm not holding it to a higher standard because it's on xbox, because the fact is that Xbox games are developed with the exact same tools that PC games use, which is why they can come out quirky, buggy, and often over simplified, like forza appears to me.
Even on their website some of their numbers seem a bit off. Like on their Sylvia for instance, I don't know if this is a reflection of it's game counterpart, however "adding" the "sport" exhuast and intake yeilds 27hp...NEVER. Not as stand alone mods. GT4's numbers as far as tuning go are a lot more realistic, as well as combined numbers. Alone the exhuast will yeild less, however, if you put on a turbo first, and then exhuast, you will get more, and vice versa.
With all their claims etc, it's not really impressing me.
Also if you watch the race closely, you'll notice that bill gates rams the wall at around 28mph...his car bounces off the ground. Then the game AUTOMATICALLY places him back on the track. I HOPE this is a feature you can turn OFF.
And when in GT have you run into a wall at 28mph and bounced off the ground? I don't even remember seeing this in GT3, the only time I can remember bouncing off the ground in a wall collision was going high speed, like 70+, or floating the car at the test track on the turns, and that's because the phyics were odd.
I'm sorry but I take Forza like a grain of salt, regardless of all the bells and whistles, it's just flashy show, so far they haven't shown me anything to impress ME, and that is my opinion, I'm not saying it will be a bad game, but it in no way impressed me, nor does it entice me to buy it.