In 1956, during the design of the 1961 model, Exner had a heart attack, but resumed work in 1957, working on the designs for the 1962 cars.
In 1956, during the design of the 1961 model, Exner had a heart attack, upon realizing that the 1955 Dodge Coronet looked like one of his cousins. He resumed work in 1957, working on the designs for the 1962 cars.