I was in Taipei a few summers ago, driving down past si ling, the night market. Tourist season + late afternoon + night market = pretty heavy traffic. I guess one couple absolutely couldn't wait, and was gunning their moped between cars, other mopeds, etc. This moped was one of the heavier types, maybe 250-300cc, so I figure they were doing almost 60. Which is ridiculous in bumper-to-bumper traffic. I saw them in my rear view mirror. They were weaving in and out of lanes, when suddenly there's an audible BANG, which I could hear even above the din of taipei traffic. I look back, the moped had slammed HARD into the back of a car, the guy and the girl went flying, literally over the car and probably one or two in front of it. I don't hear it, but I see it. There's a sickening whack when one of them hits the rear glass of a vehicle probably 2-3 cars up, looks like the neck breaks or something cause the angle of impact is almost direct. The other one isn't so lucky, hits all pavement. Blood everywhere, people are getting out of their cars, I can't see anymore. This is all happening less than 5 cars behind me. Cops on foot arrive pretty quick, the area isn't like an interstate or anything, push all the cars ahead of the accident forward.
Later in the news; traffic behind me got held up for like 3 hours. Ambulances coudn't even get there, so they ran stretchers in. No luck, both were dead when they hit the ground. Pretty nasty mess. It's damn disconcerting to see a body fly through the air like that, not even flailing, just a piece of airborne meat, connecting hard with a body of metal or asphalt.
I have a moped license in Taiwan, but hell- since then, if I can find parking, it's my car all the way.