Details and the first shots of Turn 10's Forza Horizon have surfaced via the German site Forza Life.
According to the site, which pulled the information from the latest issue of GamePro Germany, the game will maintain the physics from Forza 4, but optimized for off-road as there will be 65 types of terrain ranging from mud and gravel to grass and asphalt.
It's an open-world racer with dynamic day and night cycles, and takes place in Colorado - as you can see via the screenshots below. Looks a bit like Route 550 to us.
The game will also contain gas stations, paint shops, car dealerships and players can race various vehicles in the game, including a plane.
According to Forza Life, the game is slated for release on October 23, 2012.
Expect more information on the racer Monday during Microsoft's press event at E3.