Imo it's really not enough. Sure, maybe the Passat and Jetta folks are thrilled. You got 25-40% of your car paid for.
My used tdi Touareg dropped 18k in value on trade to the same dealer 3 months later with only 3k additional miles. Might be acceptable for a new car sure, but a used 2014 with 20k. No way. No other dealers even want the car. We tried to get in a Land Rover LR4 and the sales associate couldn't do the deal with the tdi on trade.
My attorney is waiting to see what the judge says tomorrow...