The first human being to recommend traveling light was probably hiking through the forest with his belongings on his back. Or maybe she was trying to cut through rush-hour traffic on the way to soccer practice. In either case, bulk was not an advantage.And so it is with SUVs: A hulking, 5,000-pound, $40,000 behemoth may look impressive in your driveway and yeah, we know it could tow City Hall if it had to. But that doesn't make it the most ideal companion for the backwoods, or even the back streets. Chevrolet's Tracker, on the other hand, is a fully trail worthy SUV that's not much bigger than the car-based compact SUVs. A real truck, it's built on a ladder frame, and its four-wheel-drive system offers a low range. Yet it's not much more expensive than a well-equipped compact car.