If I were the one selling the car, there would be very little if any wiggle room in the price and I would make that clear to you before you came to see it. If I'm selling one of my personal cars, I price them fairly, I disclose everything and I usually sell them the first day.
Nobody can answer your question because some sellers pad their prices a bit and some (like myself) do not.
Buying a used Volkswagen can be a risky venture given their reliability history.
I would definatly take it to a trusted shop for an inspection.