Sorry, badged as a Buick just isn't doing it for me. I have a Buick in the garage as a daily, but I never grooved on the GNX. Some of the other badged-up T-types from the late 80s were kinda ok, but I preferred the halo models from Olds and Pontiac over the Buicks. Just a personal preference thing.
Besides, it wouldn't matter. GM would have somehow screwed it up anyway and soon afterwards killed the replacement parts support for this, just as they have done/are doing for their current/recent halo cars like the SS. The general has really pissed me off.
I remember when the GN came out. I was working as a service manager at a Mazda dealer and I was just entering my final year in the SCCA Pro racing circuit, running an '86 RX7. Our dealer also had a Buick franchise. The general manager from there came and got me and said,"you gotta drive this car!" And I said, "what, ...a Buick?!"... He said, "I know, ...right!?... Just wait, ...you'll love it!"
So, yeah, it's acceleration was impressive, for one of those things, but boy,... that sucka couldn't stop worth a darn!...nor turn a corner fitting a performance vehicle. At the time I was driving, as a daily, a '66 GTO clone, set up for autocrossing, so, I knew that GM could have done better and so, I was never really a fan of this car.