Same car? I'm thinking so. Flipped. https://www.ebay.com/itm/1974-Buick-Riviera-GS-/232760652908?_trksid=p2141725.m3641.l6368
While it does look like the same car, the original ad was on the Cleveland craigslist, and now the car is in Florida. So the flipper bought it in Cleveland and then either drove it or had it transported all the way to Florida just so he could sell it again? Why invest all that effort and money? Why not just sell it again in Cleveland? I don't particularly care for the sort-of "over-retouched" photos. They almost look like paintings, not photographs.
Trash by Lash? I'm kind of disappointed. No pictures of rusty exhaust pipes painted silver or painted over grease and oil on the bottom of the car.