Under Harley Earl, GM created the industry's first concept cars. But critics often complain that car companies make cool concept cars that never turn into production models.
Under Welburn, cool concepts, like this 2006 Camaro, often did make it to production without losing their eye-catching edge. In fact, it would be hard for a lot of people tell this concept car from the production Chevrolet Camaro that came out in 2009.
