Image via Wikipediawe know that recently is 40th anniversary Edition Shelby GT500KR "King of the Road" Mustang, and it was sold in 1,000 units,wow it is great, now Ford and Shelby announced they will build 746 units more to be sold as 2009 Ford Shelby GT500KR. Out of those 571 units of the 2009 Ford Shelby GT500KR will be destined for the US market. The 2009 Ford Shelby GT500KR is powered by a 5.4-liter supercharged V8 engine that features a Ford...