If you drove that thing for a week, your opinion would change. Me, I'd walk on hot coals for that car!
I've had a couple of buick centuries around that vintage. Wasn't impressed then, still not. lol
The Centuries were tuned for old people used to the old boats. While not a Eurosport, that Celebrity has the v6 and rally wheels so it likely has the heavy duty suspension too. It should have sporty driving characteristics, and with that low of miles, it should still have the excellently tuned factory muffler too.
I've owned more than my share of IROC-Z's and also more than my share of Celebrity Eurosports. With a couple simple changes, the handling is right up there with the IROC-Z's, but it has the usefulness of a family sedan. You have to drive one to believe it.