You got a great deal on the car...$4000-$5000 is the MOST you can get off of the car PERIOD. (varies depending on model/price)
They made very little profit on the new car, but they will make some on your trade in, which is typical.
$1,825 for the extended warranty...you MAY have been able to trim it down a few hundred...maybe around $1,500... but it's nothing to loose sleep over...
I've seen people pay well over $2,000 for these. So your good here to.
As long as you got fair value for you trade in you got a great deal!
Now go out and enjoy your Journey!!!