https://stlouis.craigslist.org/cto/d/ballwin-1998-buick-riviera-supercharged/7530286465.html
i have no interest in this vehicle but thought it would fit your criteria.
Very nice car! As a suggestion, you may want to consider posting your ad on v8buuck.com as well. There are a number Riviera guys who frequent the site.
I’ll be attending a friend’s retirement party on January 31st at this location and would be more than happy to check out the car if anyone’s interested.