Found this on the web.
“In Colin Dexter's original novels, Inspector Morse drove a Lancia. However, John Thaw, who had played Jack Regan on The Sweeney (1974), which featured a lot of Jaguars as villains' getaway cars, insisted that Inspector Morse would have driven an iconic British car, and never an Italian sports car. Dexter was so impressed with this reasoning that he asked his publishers to change "Lancia" to "Jaguar" in all subsequent reprints of his novels.”
Going back to the puzzle. What is the significance of the title? I get the reference to Oxford University but I don’t see how it links to the theme.