Them be some sexy-ass mountains.
Yeah those and the ice mountains do look really really nice. I've always hated how a lot of racing games just ignore all of the surrounding stuff, trees, crowds, mountains, etc. because they think people who play racing games don't care. I absolutely care, especially when the cars are starting to look photorealistic, not just in photomode but gameplay as well and the environment still look like they are from some previous gen game.