A+Case+For+Cars+Are+Living

=Are Cars Living?=

An alien spaceship lands in your backyard. They have been observing Earth for years and have finally decided to make contact. They have so many questions about Earth. One thing they are very intrigued about are these giant living things that seem to stick to pathways - sometimes in large packs, other times alone. When questioned further you discover they are talking about cars! Explain how aliens might think that cars are living, AND then explain why they are not.