will forza with Kinect be an entirley new game i need to go buy?

i have forza 3 and will be buying kinect when it comes out and ive seen the demos on youtube where they are playing forza with it but they called it forza 4 but it looked the same as 3. will i need to go buy this or will it work with forza 3? thanks

Sorry about me changin my answers, but as I do more web browsing I read more and more, lol. But, yes. You are right. At E3 a Forza 4 was previewed with Kinect, and from what I know Forza 3 was released before talk about Kinnect began so, I doubt it’s compatible, so I’m sure you’ll have to buy Forza 4 when it comes out.

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