This rare VW Passat hid the engine that built Bugatti and Bentley—until reliability killed it

In 1997, on a Shinkansen bullet train running between Tokyo and Nagoya, then-Volkswagen AG CEO Ferdinand Piëch grabbed an envelope and sketched an engine that had been on his mind for a while. He had just finished talking with Karl-Heinz Neumann, the automaker’s head of powertrain development, about the VR6, Volkswagen’s narrow-angle six-cylinder engine, compact enough to fit transversely even in a Golf.