When Buick was told the news that the Grand National would be no more after 1987, they decided to team up with ASC/Mclaren and build the "Grand National to end all Grand Nationals". This car was to be built as a limited production collector's car and sport the performance that would wipe away anything at the current time. GNX stands for "Grand National Experimental" and only 547 were produced. This thing was a complete monster as it was rated at 300 horsepower and 400 ft/lbs of torque. No engine modifications were made, but almost every single performance part was modified to give a bit more performance. Examples of these changes include the turbo, intercooler, computer chip, exhaust, suspension, tires, wheels, fender flares, and engine vents on the side panels. The transmission was also modified to increase performance. These cars are very rare and collectible and are worth up to $50,000 right now if it has little miles on it. Most of the people who bought a GNX brand new intended on storing it as a collector's car. In fact they were all sold out even before the first GNX was built. GNX #1 and #2 were kept by Buick themselves. Many are still in garages today with barely any miles on them. The Buick GNX was produced with the thought of making it at least 1 full second faster than the regular Grand National. They did a nice job achieving this goal as Motor Trend, Cars Illustrated, Car & Driver, and others tested the GNX and it ran a solid best of 13.26 @ 104 mph. It did 0-60 in 4.5 seconds which was unheard of. The amazing part is, they didn't even do any engine work to the GNX! The motor itself was completely un-touched. All the performance came with simple "tweaks" of the current parts, which can be done to any Grand National! These cars came off the factory ready to be raced. The GNX and Grand National rank right up there as one of the quickest, most dominate, and collectible cars of all time. One of the most amazing cars of all time, the 1987 Buick GNX was truly destined to be a classic. It came with the same 1987 Grand National drive train but with a lot of minor changes done to it. It ranks right up there with all the big blocks of the late 60's and early 70's as fastest production car of all time. Only 547 were made and it was intended to be made rare and collectible. It was a tribute and farewell by Buick Motor Division of GM to the Grand National series.
