A few friends of mine and I driving to drop one of them off, I was sitting in the back seat in the middle, when I looked behind my buddy's head, when I saw it, my eyes widened. I poked my friend, he turned around and we were both in awe. It was a large, blue, flaming with tentacle like flames. We all looked forward, then back repetitiously. It was going the same speed with the car, just following us. The first thing I said was "That's a buckin' UFO!"Then, it Just disappeared ( like most UFOs).