Why not create a cargo freight game, like airwaysim, but with roads and highways, and biggest cities in USA, using trucks like aircrafts and farm products, minerals, or any other industries supply as passenges. With fleet maintenance like aircrafts, and staff...
I mean, is just a idea, and needs improve...
Taking the airwaysim database (part of them) to start the game and attract a new kind of players...
Sorry about my English (Im from Brazil), and sorry if I am posting this in wrong place, but I thought this...