1971-1976 Pontiac | How Stuff Works
Several different types of Pontiac cars made up the company’s lineup. The Catalina lineup was fleshed out by the Brougham model, available as a two- and four-door hardtop and a four-door sedan. It featured more luxurious upholstery, modest upgrades such as Brougham lettering… Source: auto.howstuffworks.com