I was riding in the backseat of my friend's M3 while we are going down the road. Next thing I know is that I hear a bam bam boom. The left side of the car felt like it came off the ground. I was like what the hell did we just hit. We pull into a church parking lot about a 1/4 mile down the road. We notice there are about 5-6 other cars sitting there with their emergency lights on and flat tires. Me and my friend walked back down the road to see what we hit. A freaking spare tire. You know the small donut kind. It knocked out my friend's foglight, did some damage to the lower front panel of the body and punctured his left rear tire. How in the heck did that thing get in the road? Not only that, six other people hit it and no one moved it until we did!