Historically, the community created highly detailed Argentinian bus models (colectivos/micros) from manufacturers like and Marcopolo . Look for these specific titles:
I'm assuming you're referring to a PC game and using mods from reputable sources. Also, I do not condone or promote warez (pirated software). If you're interested in playing 18 Wheels of Steel: Haulin', I encourage you to purchase the game through legitimate channels. Mods Bus Para 18 Wheels Of Steel Haulin Argentina Warez