In the summer of 1996, the Ford Motor Company began building the Expedition, its new, full-sized S.U.V., at the Michigan Truck Plant, in the Detroit suburb of Wayne. The Expedition was essentially the F-150 pickup truck with an extra set of doors and two more rows of seats—and the fact that it was a truck was critical. Cars have to meet stringent fuel-efficiency regulations. Trucks don't. The handling and suspension and braking of cars have to be built to the demanding standards of drivers and passengers. Trucks only have to handle like, well, trucks. Cars are built with what is called unit-body construction. To be light enough to meet fuel standards and safe enough to meet safety standards, they have expensive and elaborately engineered steel skeletons, with built-in crumple zones to absorb the impact of a crash. Making a truck is a lot more rudimentary. You build a rectangular steel frame. The engine gets bolted to the front. The seats get bolted to the middle. The body gets lowered over the top. The result is heavy and rigid and not particularly safe. But it's an awfully inexpensive way to build an automobile. Ford had planned to sell the Expedition for thirty-six thousand dollars, and its best estimate was that it could build one for twenty-four thousand—which, in the automotive industry, is a terrifically high profit margin. Sales, the company predicted, weren't going to be huge. After all, how many Americans could reasonably be expected to pay a twelve-thousand-dollar premium for what was essentially a dressed-up truck? But Ford executives decided that the Expedition would be a highly profitable niche product. They were half right. The "highly profitable" part turned out to be true. Yet, almost from the moment Ford's big new S.U.V.s rolled off the assembly line in Wayne, there was nothing "niche" about the Expedition.