BMW whips Audi in impromptu chess game

BMW makes an audacious move here in its battle against rival Audi. The latter apparently erected a billboard taunting, "Your move, BMW," for its redesigned 2009 A4, on a thoroughfare in Santa Monica. Shortly thereafter, in a bit of inspired luxury auto one-upmanship, signage for BWM's M3 sedan appeared across the street with the line, "Checkmate." It's a fun, in-your-face concept that's fast earning kudos in auto and ad media worldwide. (Juggernaut Advertising, an independent agency in Santa Monica, created the response ad for BMW of Santa Monica.)