When this Grand National rolled off the assembly line at GM's Pontiac Assembly Plant, it was more than just the last of Buick's famed black hotrods. It was also the last of GM's big, rear-wheel-drive G-Bodys, a design that went back to the '60s, and the last car to leave the Pontiac Assembly Plant after 60 years and millions and automobiles. So the crew at Pontiac sent it out with a bang: As the Grand National moved down the line, nearly every worker added their autograph and even a message wishing the car luck in its journey — which, according to the odometer, has been all of 33 miles. The car still has factory plastic coverings on the interior and has spent its life in climate-controlled storage. Included in the sale are the signed window sticker, cardboard sign from the Pontiac crew, and loads of memorabilia. The last Grand National goes to auction at Barrett-Jackson's January 2022 Scottsdale event.