American Truck Simulator | [v 1.40.1.0s Dlcs] (...

: Added new 4x2, 8x4, and 8x6 chassis options for various truck models, including the Freightliner Cascadia , Peterbilt 389, and Volvo VNL.

: A new visual lighting system that included physically-based lighting and realistic HDR skyboxes, requiring updates to nearly all in-game textures and materials. American Truck Simulator [v 1.40.1.0s DLCs] (...

: States like Arizona, New Mexico, Oregon, Washington, Utah, Idaho, and Colorado (Wyoming was the next release after 1.40). : Added new 4x2, 8x4, and 8x6 chassis

The "DLCs" portion of the title indicates that the package likely includes some or all of the major Downloadable Content available up to that version's release. Typical DLC categories include: : Added new 4x2