Road Test Editor Howard Walker chases the infamous Tail of the Dragon for 11 miles (and 318 curves) in a new 573-horsepower Acura NSX hybrid Supercar. Breathe. Take in a long, last gulp of brain-nourishing oxygen. Blink to focus retinas on the snaking ribbon of blacktop stretching out in the distance. Ahead, the infamous Tail of the Dragon. This serpentine mountain roller-coaster ride on the North Carolina-Tennessee state line, whips you through 318 pinch-tight turns in just 11 miles. There ...