I heard the Ford Crown Victorias have rather cheap parts, but it is not nice on fuel. And while rare, the spark plugs can explode on you.
If you look at an Accord from the early 2000s, do your due diligence to make sure the tranny isn't failing, because it was quite a prevalent issue back then. Carcomplaints.com's data has a few caveats you need to consider(more popular cars will receive more complaints), but it is of a high enough number to indicate it wasn't just luck.
If you get a V6 Toyota like those, you want to ask if a tune-up has been done; you probably should ask on every vehicle you are considering. Yes, you can DIY, but you need to set aside time for the disassembly. My mom bought me a Camry station wagon from 1996, and while it runs, the spark plugs, spark plug wires, and both cover gaskets need replacing.
Now, a 4-banger Corolla Matrx/Vibe is indeed pretty easy to do routine maintenance by yourself, but the ride ain't fun and make sure you are comfortable with the seats.
GM vehicles powered by the 3.8L V6(certain Buicks) will have a bulletproof engine but they are not immune to the other GM nonsense that can crop up on their vehicles.
Old Camrys have ice colde AC while the Vibe/Matrix's AC is never ice cold unless the temps are 85 or below.