It looks good to me. In the fog the tree's slowly fade out as they get further back, which is realistic. And even a lot of times you can see silhouette's in the distance, unless the fog is really heavy. But this game isn't going for heavy fog. just a light fog in the distance to help with rendering.
Graphics look fine to me. The biggest issue MR had was the unrealistic chunky mud, and from early screenshots we're seen SR fixes that. Other then that MR was already a fantastic looking game as was. So I've got no complaints.
@justinlynch3 The fog actually looks OK in that screenshot. I was thinking of something else. I was thinking of the current MR where sometimes distant trees in the fog appear whiter than the surroundings. I hope they fix that in SR. Same with the windshields that are not even affected by the fog. While the landscape in the screenshot above looks nice, I can't help but see the strong resemblance to MR. I suspect the SR engine is merely just an evolution of the MR engine, not a new engine.