 In 1954, Nash-Kelvinator capitalized on its experience in refrigeration to introduce the automobile industry's first compact and affordable single-unit heating and air conditioning system optional for its all Nash Ambassador, Statesman and Rambler models.It was a true vapor-compression refrigeration system with a compact under the hood and cowl area installation.Combining heating, cooling, and ventilating, the new air conditioning system for the Nash cars was called the "All-Weather Eye".