|Perhaps the tire is lonely...|
A rubber tire comes to life, discovers that it has telekinesis, then uses that power to kill people. This happens for no reason
A chorus of people are watching and commenting on the actions of the murderous tire like guests at a play. Why are they there? No reason.
The tire is stalking a beautiful woman at a local motel for no reason.
Getting past these ridiculous things that happen for no reason is difficult. However, Rubber is upfront about it. You can't say that about a lot of movies nowadays.