BeamNG.drive version 0.4.0.6 is not available for free as it is part of a paid commercial game
Vehicle Variety: Dozens of highly detailed vehicles compared to the handful available in early alpha builds. BeamNG.drive for BeamNG.drive - Download beamng 0406 download free
However, compared to modern standards, 0.4.0.6 is ancient, buggy, missing hundreds of vehicles, lacking PBR rendering, and has none of the current tire physics or UI overhaul. BeamNG
Look for a dropdown menu containing older versions or legacy builds like "0.4.0.6-dx9". A Warning About "Free Download" Sites compared to modern standards