Architect Bob Berryman purchased a late model car from Fred's Ford dealership. Three months after he purchased the car, he had to replace two of the tires because he ran over nails at one of his construction sites. Fred's Ford replaced two of the tires, one of which was defective. The defective tire blew out while Bob was driving and caused an accident in which he was injured. Should Bob file a lawsuit using the theory of negligence or strict liability? What are the elements that Bob would need to identify to make the determination?