Robosaurus is a true dinosaur robot, 12 feet high; it is used at motorsport events, particularly at monster truck shows.
The monster was built in 1989 by Doug Malewicki; it shreds and swallows cars, and breathes flames out of its nostrils.
The driver of the vehicle is set up in the Robosaurus' head.
You better move out of its way if you run into it in the street ;-)
Here it is in action, in a new video announcing its arrival at America's Worst Driver:
http://www.youtube.com/watch?v=JWxHY8Yh8_0