Detroit – The GM Renaissance Center stands in close up in the beautifully colored clear sky on this Michigan morning. The complex is a collection of not one, but five interconnected towers with the tallest being over 750 feet high. The central tower is adorned by GM’s instantly recognizable “Quality Badge” logo. Known officially as the Mark of Excellence, it was first introduced in 1966 and had from 2006 to 2007 appeared on all vehicles produced by the giant car company. However, following diminishing market shares and subsequent disappointing sales, the auto maker decided not to focus on the GM brand exclusivity stylized campaign and has instead singled out such lines as Chevrolet and Buick for “excellence” and special branding. Both mega brands continue to be hugely popular around the globe.