It doesn't necessarily need to be a short writeup, just a carefully constructed one.
I sold my short lived, horrifyingly rusty (it took many cans of great stuff foam to seal the trunk up) 98 Bonneville for $800 with a SEVERELY hurt motor, took about 2 weeks of being listed, listing was as follows. Dude who bought it drove it home, motor locked up in his driveway, he was a happy camper.
1998 Bonneville 3800 Series 2 naturally aspirated, around 163900 miles, engine is blown, will start and run but oil is full of glitter, loses oil pressure at idle and has a nasty main bearing knock above 2500 rpm. Just installed a Dorman UIM with revised EGR chimney and new metal framed Fel Pro lower intake gaskets. Front tires marginal, rears are great. Some rust, but structurally sound, jack points still solid enough to use, floors all there, etc. Trans shifted great and was just serviced. Rides nice, but needs front sway bar links($10 at oreilly). Front brakes look recent, pulled drums and rears are good too. All power stuff works, heat good, ac unknown. Interior useable but needs a good cleaning and headliner is pinned up. Includes Haynes repair manual. Would make a solid cruiser with a used engine, I just dont want to deal with it any more, $900 OBO. Trade for 90s Corolla, possibly with addition of cash from me, may be considered. Car is parked on REDACTED, somebody is usually home after 3pm to show the car. AS-IS.
Then there were 2-3 pictures of the exterior, taken right where I parked it in the front yard.
Note how I don't explicitly mention the shoddy bodywork, 2 bottles of advance auto knockoff STP oil treatment in the crankcase, AC with no charge left in it, that it's really only structurally sound for another winter or two, the sticky relay that would intermittently keep the dozens of interior lights on when you left the car, the cheap marine battery tray screwed to what was left of the front frame horn, or that it was a smoker car. People expect all of those things on a car like that, no need to remind them of it. Looking back I probably should have mentioned the all new rear brake lines too. Note the lack of desperation/sob story as well.