He probably did take good care of it. But you know what, its got 160k miles on it. Nothing can change that. Unless he did things like replace alot of the suspension parts, bushings, engine mounts and a full engine rebuild....clutch tranny and all that other stuff. All those parts have that many miles on them.
Even if he replaced all those parts, the chassis has that many miles on it. I would personally look for a lower mileage car. I think 160k is about 80k too much for a car you want to trick out.