Our test vehicle was a loaded 2007 Chevrolet Tahoe LTZ, with few if any options left unchecked. The basic LT costs $39,320 (including a $900 destination charge), for which you get air conditioning, power everything, tilt steering, a 5.3-liter flex-fuel V8 engine connected to a four-speed automatic, and a towing package. The $8,860 LTZ package adds a power rear liftgate, leather upholstery, three-zone automatic climate control, 20-inch wheels and chrome grille and exterior trim among many other features. Our test vehicle also featured the $2,250 navigation system, the $1,295 rear seat DVD entertainment system, a $995 sunroof and the exceptionally helpful $250 rear view camera system. The total came to an eye-popping $52,970.