Recent trademark filings by Audi offer a glimpse of explorations the company may be considering regarding its historic four-ring logo. The pair of trial drawings could be a signal of an update to the brandmark or perhaps an adjustment of the mark to accommodate new products, technology, or sub-brands. Of course, many other interesting possibilities are open as well, including simple defensive measures to protect the brand from infringement. (Visual from Autoguide.com.)
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