Check the official BeamNG.drive release notes or patch page on their website or the Steam news hub for the precise 0.25 changelog and download instructions.
: A fun mod that creates unique (and often weird) vehicle combinations. BeamNG Skin Making: A Comprehensive Tutorial beamng drive 025 download top
If you own BeamNG.drive on Steam (which you should), you can download any past version via the Steam Console. Check the official BeamNG