By Walt Hickey Buick In the 1980s, Buick thought they needed to make a muscle car, and the result was the Grand National. The line came to an end in the 1987 model year, with the last vehicle rolling out of the Pontiac, Michigan plant on December 11, 1987. This vehicle incidentally was also the final one produced at that historic facility, which first began producing automobiles for GM in 1927. That very vehicle — the last Buick Grand National — will be auctioned off in January. Also remarkable about the vehicle is the incredibly low mileage: the car has been kept in a climate-controlled space and rolled out for special events and documentaries, and so the odometer reads