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

When lots of people stroll into a Chevrolet dealership in Mechanicsburg, they're concentrated on the shiny brand-new automobiles on the display room floor. They're mesmerized by the contours of a brand-new SUV or the muscle of a powerful pick-up. Yet couple of stop to think of what's occurring behind the scenes. There's a whole world humming with m