To say that Jonathan Harley knows his subject inside out is no exaggeration; in the past four decades he has restored over one hundred Rolls-Royce Silver Ghosts, frequently resurrecting them from little more than a pile of scrap or a long-abandoned chassis. He knows every nut and bolt of these magnificent vehicles, an intimate knowledge that was put to good use in identifying, sometimes only by bolt design or the position of a hole in a crossmember, exactly which chassis he was working on, settling disputes over authenticity which had reverberated for years. But in this fascinating and...