Thanks to BMWBlog (and Juggernaut Advertising) a very interesting advertising war has been captured on the billboards of Santa Monica, CA. This is actually a continuation of something that started between the two in 2006 and indeed an inherent rivalry even before then. The latest round though was started by Audi, in the ad you see above. That ad was followed by this ad, across the street no less. Clever, huh? The interesting thing about it is that while the Audi appears to be from direct from corporate Audi's advertising department, the response is by a local dealer, Santa Monica BMW. Work on the advertisement was done by the intrepid Santa Monica, CA based Juggernaut Advertising. I've got to hand it to them, this is brilliant! Both the advertising idea itself