@Minamikaze, Of course, you´re right, but this is a version of the Warszawianka, not the original, the lyrics are different, and i can assure you that they are singing in Spanish...http://www.youtube.com/watch?v=op3w3wMqdwg&feature=related
To the maker of the game: The music is not soviet, it´s an anarchist hymn from the Spanish civil war, called "A las barricadas", check it. And...Weird game, but fun :)
 "Racing Comrade!"){kind=icon}