Davito

Looking for a 958 to replace my wife's infiniti crossover and an occasional track car towing, found a 2011 S at a really good price, after a test drive everything looked great until I saw the headliner was separated from the roof of the car for about 1 inch, from the rear seats towards the cargo area. Is this a common "not big deal" kind of problem or a big red flag? The rest of the car looks clean with no signs of bodywork.

Cheers,
David