rFactor race sim Version 1.255     Important Product Information  Internet connection is needed to register and activate this product. Activation code and instructions will be included.    Upgraded now with 15 degrees of freedom physics engine, Advanced tire modeling & Support for 4-link rear suspension.    Engine boost modeling, Complex aerodynamics Head physics, cockpit vibrations, detailed bump modeling.    All-new track-specific terrain data file system! rFactor provides unprecedented flexibility, allowing the upgraded series to grow and evolve with mod community involvement, race club formation, and feedback from users worldwide. We know you enjoy the thrill!    Graphics/Sound   DX9 advanced graphics engine. Real-time day/night transitions. Projected headlights for nighttime driving.    Adjust player and opponent volume ratio. See the apex with the Look Ahead slider. Adjust your seat and mirror while in the driver's seat.    Updating real-time scoring towers. Expanded and enhanced gauge and LCD features for vehicle cockpits and so much more.    When you demand only the best in a true race sim then get rFactor.