Things sure are beginning to heat up in the auto industry. Well, sort of. There’s a marketing war abrewing in California between Audi and BMW and it’s an entertaining one. On the corner of Santa Monica Blvd. and Beverly Glen Blvd Audi has put up some billboards showing the all new Audi A4 along with the headline: “Your move, BMW”. And Santa Monica BMW had just one thing to say to its rival – “Checkmate.”