You've got it right. Find the best ES within your budget and you will be good to go. If you can go a little higher and get a CPO, even better. The same goes for the RX. Charger/300's are simply put, not reliable and not really a good choice given that reliability is your first criterion. I would note that there are toyota equivalents of these vehicles. Lastly, I would suggest, if possible, at least considering a new vehicle, such as a Toyota or even a Lexus. Right now, Nissan is offering $5,000 off Pathfinders and some dealers are offering another $2-3K on top of that. While Nissan is a shaky company, that car has the V6 engine that is tried and true and a conventional transmission, plus it is well equipped even at the lower levels. I know this suggestion is not exactly responsive to your question, but always think it is worth at least considering new, when weighing against the unknowns of a new car. Best wished and good luck.