The Pontiac GTO gets the magazine covers, but the Grand Prix and Catalina were built on the same performance-oriented foundation for a fraction of the price. This entry breaks down the shared drivetrains, the four-speed option sheet details collectors look for, and why a 1964-1981 Grand Prix search typically turns up asking prices well below GTO money. Read on to find out why Pontiac’s overlooked models deserve a second look.