I found a few which had between 1000-4000 miles on them and one with 4 seat option on the car (how much is this option when new).

The dealer does not provide an "asking" price and I need help on negotiating something that I dont have a basis on.

Not trying to low-ball but is 160K be an unreasonable offer from my side?

 

You can always offer $160k... yet i think that may be a bit low.