The Ford Motor Company is putting three Mustang cars on the auction block. One of them will be the first retail 2010 Ford Shelby GT500. The other two are a pair of Mustang GT concept cars that have not gone on sale yet. The three Mustangs are going to be sold along with 400 other collector cars for charity on April 9-11 at the Americraft Expo Center at the South Florida Fairgrounds. Any money received for most cars above the manufacturers suggested retail price gets donated to The Carroll Shelby Children’s Foundation. The proceeds from the two Mustang concept cars gets donated to the Juvenile Diabetes Research Foundation.