Earlier this evening the existence of Xbox Live "Avatars" was apparently leaked through a research firm called Intellisponse. Through the site's backend a heap of details of Forza 3 have also been found, outlining potential pricing "scenarios", a full spec of the game itself, plans for DLC and details of a potential collector's edition.
The overview of the game says it will include over 100 tracks and 400 cars, a slew of new race modes and will be sold as a two-disc set.
Eight "scenarios" for pricing were listed on the site, four for the US and four for the UK.
You can find images of all the information after the link.