I'm driving down California's Pacific Coast Highway in Audi's one-of-a-kind Quattro Concept with a full police escort. In front, law enforcement is clearing the road ahead as if sweeping for mines, pushing civilian traffic off to the side. I've got another unit behind me, shooing the restless natives off my flanks. The parade is impressive, but I'm wary of the pageantry. Are the cops there to solely maintain a generous cushion around the multi-million dollar concept, or has Audi paid them to keep me from rocketing off into the sunset off with their turbocharged 190-mph sports coupe?
