Modern Marvels: This engrossing, two-hour show goes under the hood and a whole lot farther, as two certified mechanics dissect a 2000 Ford Taurus, providing a fascinating, nuts-and-bolts view of its major systems and explaining how it all works. While the Taurus surrenders its secrets, automotive experts and historians detail how cars have evolved since the days of the horseless carriage, tracing the developments that have made autos swifter, safer, more economical and just plain better. Visits to museums and private collections highlight important older cars, while concept cars and computer animations offer a glimpse into the automotive future.