The Pontiac GTO is widely recognized as the genesis of the American muscle car golden age, and now, we're taking a look at these classic GTO concept sketches.

Some become legends, while others...well, they're better left as sketches. Buckle up, because we're about to take a joyride ...

Sometimes, a concept car is kind of a rough sketch for an eventual production model. And sometimes a concept car guides an entire industry into the future, as was the case with the Buick Y-Job ...

Thomson is using his skill as an artist to sketch the vintage cars that he checks out and is ... email detailing everything he saw, and the concept for the blog was born. "It dawned on me early ...