"But no vehicle in China has developed as ironclad a reputation as the Audi A6, the semiofficial choice of Chinese bureaucrats. From the country’s southern reaches to its northern capital, the A6’s slick frame and invariably tinted windows exude an aura of state privilege, authority and, to many ordinary citizens, a whiff of corruption."

“Audi is still the de facto car for government officials,” said Wang Zhi, a Beijing taxi driver who has been plying the capital’s gridlocked streets for 18 years. “It’s always best to yield to an Audi — you never know who you’re messing with, but chances are it’s someone self-important.”