No mileage stated on this Craigslist post but this car looks nice. Judging by the condition, I’d expect this to be relatively low miles in the 50k range. The description is sparse but mentions that the top is new.
It is worth checking out if you are in the market for a 7-up car.
https://valdosta.craigslist.org/cto/d/valdosta-1990-ford-mustang-7-up-series/6922895231.html