Good afternoon- A local seller has a 1991 560SEL available for an asking price of $5490/obo. Car shows 89k miles, new Michelin tires, and a new state inspection. Interior is very clean, leather has no rips, body appears complete and paint is shiny. If I contact the seller and inspect the vehicle more thoroughly, what questions should I ask about typical 560 problem areas? Is there anything in particular I should note? Without knowing about the owner history or title history (assuming it's clean) does this seem like a fair price for a last model year 560?