Statement of Facts:

Ronald Doyle, age 21, was injured on December 1, 1979, in a one car accident while driving his father's car. As a result, he suffered from seizures and convulsions which occurred several times a week without warning. On June 1, 1980, Ronald was waiting for his father to take him to see his girlfriend. The doctor had said Ronald should not drive his Jaguar sports car because of the seizures. Ronald became impatient and drove off alone to his girlfriend's house, traveling at speeds up to 100 miles per hour. The right rear tire, manufactured by Goodroyal Tire Co., blew out, causing the car to roll. Ronald was crushed to death.

Ronald's parents sued Goodroyal because the tire was defective. The evidence shows that Goodroyal advertised the tire as "safety tested at speeds in excess of 100 miles per hour," and that the tire was, in fact, defective. Goodroyal introduced evidence that the defect in the tire was such that the blowout would not have occurred at the speed limit, 55 m.p.h. There was evidence that Goodroyal's advertising for this type of tire stressed its use on high-performance sports cars.

The applicable law is that a manufacturer is liable for damages caused by its defective product if used for its intended purpose.