There really is nothing Grand National about this car.
Let's be honest, the original was FAST for the time, and capable of utter insanity for the time with modest mods. But it was an atrocious vehicle in terms of any quality outside of the beast drivetrain. That shouldn't take away from the GNX legend, but it's the honest truth. The steering wheel and handling, the seats, the .. well everything but the power, hah. What else would one expect from a mid-80s GM product?
The new one sounds like it will probably be a nice drivers car, much more refined, 4 doors, 8 cylinder motor NA, plush interior, yadda yadda yadda. At least with things like Vettes and Mustangs you see the heritage over the years. If this new thing wasn't called a GNX, would anyone honestly even loosely associate it with the old V6 boosted one? Aside from being a quick Buick?
Besides, the GNX was damn near the fastest thing on wheels for the time. These days this 4-door will just be an also ran, however nice it is, in a world stuffed full of SRT8, Mustang GT, 2SS, CTS-V, etc infinitum.