A 1987 Buick Grand National GNX expert might be able to confirm that Omar Navarro's '87 GNX tribute isn't one of the 547 real ones that Buick manufactured, but it would have to be a GNX guru. The reason for this is that Omar took his solid original 1987 Buick Grand National and purchased an original GNX as a parts car from a car auction in Nevada that had been in a roll over crash.