WorldCarFans reports on feuding Audi and BMW billboards on Santa Monica Boulevard in Los Angeles. First, Audi placed a billboard for the A4 that says, in part, "Your Move, BMW" - an express challenge to BMW. In response, BMW posted a billboard across the street for the M3 Coupe that says "Checkmate."First it was Coke vs. Pepsi ads. Now, Audi vs. BMW. We can't wait to see Audi's response.
