Beyond the visuals, ETS2 1.40 focused on bringing older map areas up to modern standards:
: Ensure your mod version is specifically tagged for 1.40+. Versions designed for 1.39 or older will have broken headlights and flat textures due to the lighting engine change.
: High-dynamic-range skyboxes were added to provide more realistic weather transitions and sunset/sunrise effects.
: Support for 4x2, 8x4, and 8x6 chassis configurations was introduced, allowing for heavy-haul setups on American rigs like the Western Star 49X.
While ETS2 received map updates, its sister game ATS received specific truck chassis updates that often get ported via mod packs: