On my regular 2 hour trip home from college yesterday morning, I was sitting at a stop sign and began smelling something burning, like I smell after I change my oil and the car burns the oil off of the header. Then, I saw thick white smoke coming out from under my hood right in the middle front. I pulled off the road, popped the hood, no more smoke. Checked all of my fluids, all are up where they should be. I got under the car and looked around, looked in the engine bay all over once I got home. I couldn't find anywhere that anything had leaked onto anything. What happened? The car is running fine and seems to be unaffected. Thanks in advance.