So, Jan and Dean(with the writing help of Brian Wilson} say in the 1963 hit Surf City, "I got a '30 Ford wagon and I call it a woody." (Unless,of course, there's a mondegreen lurking there). The OED cites "woody" to mean a wood-sided auto from 1961. Fine. What did the world call that car before 1961? You mean it didn't have a slang name?