Yesterday, Turn 10 Studios announced that one of the premier American tracks, the Infineon Raceway, joins the lineup of tracks for Forza Motorsport 4, which releases on October 11 exclusively for Xbox 360. An interesting graphical tidbit: “Infineon is also one of several tracks in-game to benefit from the new alternate time of day feature, with early morning ‘Sunrise’ lighting engine variations available on each ribbon.” Curious what cars were announced this week? Check out The latest Forza Garage post, which discusses in more depth the launch bonus cars. Turn 10 also revealed three Lamborghinis: the 1967 Miura P400, the 2005 Gallardo, and the 2007 Murcielago LP640. Finally, we have a peak of what effect the lighting engine has on the Infineon Raceway via game footage. Click onward to see the video after the break.