INSIDE THE MACHINE: A DAY IN A HIGH-TECH CHEVROLET SERVICE CENTER

When lots of people walk into a Chevrolet dealership in Mechanicsburg, they're focused on the glossy brand-new automobiles on the display room floor. They're mesmerized by the curves of a brand-new SUV or the muscular tissue of a powerful pick-up. Yet few quit to think of what's occurring behind the scenes. There's a whole world humming with innova