It goes without saying that among the most well-known brands of vintage automobiles are Pontiac 

General Motors' Pontiac business is well known for its performance and inventiveness. 

Due to the constantly shifting automotive industry, old Pontiacs are becoming more and more valuable.

Even though Plymouth hasn't been in production since 2001, the company has left 

 over seven figures, including the Road Runner Superbird and the Hemi 'Cuda Convertible.

Some of these Plymouths and Pontiacs have seen considerable increases in value over time