In physics we are usually taught that there are three types of collisions: elastic collisions, inelastic collisions, and completely inelastic collisions. Add to that the seriously inelastic collision.

Cocktail Party Physics: nascar driver vs. wiley coyote: a real-life seriously inelastic collision

Not for the squeamish — you should stick to ideal situations; this coyote is decidedly not spherical, especially after the impact. There is no truth to the rumor that NASCAR speedometers have a “purée” setting.