Car plows through a Critical Mass event in Porto Alegre, Brazil

This video is perturbing and astounding -- nobody was killed, but how crazy and aggressive can a car drive be?

http://www.bbc.co.uk/news/world-latin-america-12604066

And a longer version, showing the chaos that followed is in YouTube:

http://www.youtube.com/watch?v=l45AS1Wynbc

The guy fled the scene and abandoned his car. Today, he turned himself in, accompanied by two lawyers and arguing self-defense. He might be prosecuted for attempted homicide, according to O Globo.

Goodness, that's horrifying. Someone could have been killed.