Explore the story and soaring used market value of the 1987 Buick GNX, a limited-edition sports coupe that's become a legend.

Buick fans obsess over the GNX, but the Grand National is cheaper, faster with mods, and still the true street king.

Two rare, factory performance specials, a 2019 Corvette ZR1 and a 1987 Buick GNX, were sold online well above $200k. Which one would you park in your garage?

And out comes this custom-bodied mashup. It's based on a 1986 El Camino, but it's been reworked to incorporate the body and interior of an '87 Buick Regal. Complementing the black bodywork, the Regal ...