People keep saying it, but I don't see it. I see one city and a bunch of speed tree. It might be big on a technical point of view but it might also be empty and uninteresting. I've played Fuel. Making it so it takes 90 minutes to drive from one end of the map to the other isn't impressive to me if all there is to do in between urban areas is laugh at some billboards and listen to the radio. I'm not the only one, either.
Go hunting bro. Or base jumping. Or take photos. Get creative and make your own fun.