There's an interesting article about a Romanian automaker which has (at least temporarily) placed a large coat of arms over the face of their building in downtown Bucharest. The article, "Coat of Arms for Țiriac Auto?" can be found on-line at http://stefanliute.typepad.com/branding/2011/02/coat-of-arms-for-%C8%9Biriac-auto.html
And this article may point out an interesting reversal of the trend of corporations dropping coats of arms for a logo. If Țiriac Auto is indeed going to be substituting a coat of arms for their currently used logo, that's a move I could certainly support!