W208 pricing
What company is selling extended warranties for your car?
On the resale issue, your miles are very low and may attract a serious buyer, but you may get a better response by returning the car to stock and selling the aftermarket items separately. You would do well to get $36-$40K, but trade-in is much less.
Ndabunka usually has a good handle on wholesale values. You may PM him for further guidance.
Best of luck with your sale.






