Amazon.de (Germany) may have jumped the gun by listing a Forza Motorsport 3 strategy guide and becoming the latest entry in a laundry list of development-related rumors for the racing sequel.

According to the listing, the 192-page guide is produced by Prima Games (the same company behind guides for the first two Forza titles) and will ship on September 30, 2009. The listing isn't confirmation that Microsoft is developing a new title in the Forza series, but if the long rumored title does exist, we'd expect Microsoft to wave the green flag during its E3 media briefing on June 1.

[Via VG247]

This article was originally published on Joystiq.

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