On ebay there is a guy that has a GNX with 9.7 miles on it. It was orignally purchased from buick by the miller beer company. Take a look and make sure you watch the video.
Buick : Grand National:eBay Motors (item 320418941615 end time Sep-21-09 13:29:35 PDT)
Buick : Grand National:eBay Motors (item 320418941615 end time Sep-21-09 13:29:35 PDT)