Two women who scarcely know each other, but with a common love of exotic landscape, vintage wheels, and high adventure (one a well-heeled Pacific Heights motorcycle enthusiast, the other a Santa Cruz-based automotive journalist, car fanatic, and mother of two small children) join forces to tackle an arduous endurance rally, driving a classic car over ten thousand miles of rough and exotic terrain in the Peking to Paris Motor Challenge. "Prince Borghese's...