I was racing the other day in single player when I noticed that the clouds were racing across the horizon at great speed. I didn't think much of it, but today I raced a a couple of modded tracks and the clouds were also racing across the sky. We are talking clouds that go faster than an airliner and those in the background must be supersonic. I research the topic on Google but nothing came up. Are my settings wrong someplace or is it a known bug?