While "BR" in gaming often stands for "Brazil" or a specific "Branch" of a mod, the numbers on real-world Actros trucks represent specific engine outputs:

Updates often included high-definition dashboard overlays, GPS integrations, and "Jost" fifth-wheel attachments for all chassis types. Real-World Reference (Mercedes-Benz Actros)

Euro Truck Simulator 2 1.46 | Mercedes-Benz Actros MP1 | Pernik (BG)

The phrase likely refers to vehicle modifications for the Mercedes-Benz Actros in the game Euro Truck Simulator 2 (ETS2) , specifically updated to be compatible with game versions 1.45 and 1.46 . Mod Context and Features

Mods for these models were frequently updated for v1.46 , adding new digital dashboards, "MirrorCam" (cameras instead of mirrors), and specialized interior trims like the Styleline or Edition 1 & 2 .

Typically indicates a engine with approximately 450 horsepower .

Indicates a slight power boost to 460 horsepower , often used for heavier hauls.