The term 'Sporty Pontiac of Old' refers to two classic muscle cars from the Pontiac brand: the Trans Am and the GTO. The Trans Am was a high-performance version of the Firebird, produced between 1967 and 2002. It was known for its powerful engine and iconic design. The GTO, or Gran Turismo Omologato, was produced between 1964 and 1974 and was one of the first muscle cars. It was known for its powerful V8 engine and sporty design. Both cars remain popular among car enthusiasts today.