John Greenwood, working for the first time with designer/engineer Bob Riley and GM stylist Randy Wittine built the first wide body Corvette.  He introduced it at Road Atlanta in mid-1974.  It was restored by expert Lance Smith.  It is kept in the US by a collector from Switzerland.  More info,

 http://registryofcorvetteracecars.com/ee/index.php/site/view_cars/147