My grandson has a nice 240 4dr 1987 vintage i believe. The body is sound and has good paint, a few baby dents mar the surface, chrome is good and the interior is nice.. Since he bought it for $2,000 he has made improvements and has corrected a number of issues with the car. Engine oil leaks, fixed. Exaust system, replaced. Front and rear brakes, replaced. Oxy sensor, replaced, New shiny tailights. Other odds and ends, a Thule roof rack I found at the dump but in good condition. I don't have a complete list. He's tiring of the repairs and despairs at having now to replace the belts and wants to sell it. Worse than that he is thinking about buying a 97 Miata (80K on the od and a 5 speed trans) to replace it.

I think that he'd be selling a car with a known history for one with an unknown history and maybe a number of it's own issues. Of course it's hard to tell what other surprises lurk in the 240. These things are hard to judge of course.

I would like to get some pros and cons that I can use to support either side. He's 18 almost 19 and in school. I remember being that age and just wanting a car that works so I get that part.
I also have sold a lot of cars that I wish now I never did for various reasons. I have 2 Amazons that
I drive when the weather is good but almost never in winter, I don't know much about 240s except that when a friend's 240 died I talked him into replacing it with a 122, he did and is happy (he had wrecked his dad's 67 estate when it was still a new car and so wasn't that hard to convince). He liked the fact that the 122 had no computer and was just simpler in general.