In 1907, when horses were still the preferred mode of travel and automobiles were loud, smelly and unreliable, Henry Royce and C.S. Johnson of Rolls-Royce, Ltd., unveiled a one-of-a-kind, silver-plated, whisper-quiet 40-50 horsepower legend, the 'Silver Ghost.' Up to 1906, the most powerful engine Rolls-Royce had ever produced was a 30-horsepower, six-cylinder giant - woefully underpowered considering its seating capacity; there was room to ferry the entire family to the countryside for a Sunday afternoon picnic. But the 1940s-50s as they were known, were different. With a body balanced high over a silky-smooth transverse leaf spring and a drive train powered by a huge but silent seven-liter, six-cylinder inline block, the Silver Ghost broke world endurance and mileage records - almost 24 mpg for a two-ton car - on a 15,000-mile run. Today, certain Silver Ghosts have yet to be retired; one odometer currently reads over 500,000 miles. The current owners of this example have driven the car over 20,000 miles since acquiring it in 2001.