Assuming you buy the game on Steam and downgrade to v1.2.5, here is how to achieve the "ultimate free mod" experience (note: the game is paid, mods are free).
Buy the game on Steam, downgrade to the v1.2.5 beta branch, and download unlimited free mods. You get the exact experience you are looking for—safe, stable, and supported. Your hard drive (and your personal data) will thank you. city car driving 125 best download full version free