The Buick GNX had more than just the underhood changes hidden up its dark sleeve. The body was stiffened, a transmission cooler added, and an improved rear suspension design featuring stiffer ...

In addition to the engine mods, there was a transmission cooler, stiffer body, an improved rear suspension ... GNX is number 308 of the 547 produced. It was previously listed on Bring a Trailer ...

and when we came upon this rare unicorn on Bring a Trailer that is up for auction, we felt compelled to share its story. This remarkable gem, a 1987 Buick GNX, that’s been waiting patiently in ...

The stock Grand National has a single muffler and dual exhaust; the GNX sports dual mufflers needed to clear the new suspension modifications. See All 7 Photos Suspension and running gear changes ...

If you want a GNX, around $200,000 seems to be the new normal. Several others have recently sold on Bring a Trailer in that price region. Normal Grand Nationals tend to go for between $20,000 to $ ...

The Buick Grand National and the limited-edition GNX were ... Bring a Trailer Beyond the all-white livery, all Turbo Trans Ams got an aero package, a performance suspension, and upgraded cooling.

Complementing the black bodywork, the Regal bits have GNX details, even though the stock Chevy 305-cubic-inch V-8, rather than a Buick turbo V-6, sits under the hood. It's a slick-looking build, and ...