Me and a friend were driving home through the mountains. We're in CO and we were out taking pictures. It was starting to get dark, and it was raining. So we're on this mountain road, and all of a sudden it looked like we were going to hit a black Bronco. The lights on it were off, and we both bracing for impact. And... nothing. Nothing was there. We both saw it though, it was clear enough for both of us to even determine the make of the vehicle.