Totally bad expereince. Went in to purchase a 2017...

Totally bad expereince. Went in to purchase a 2017 Elantra at $13.5k and then they added items to make the price $17.5k. Advertized price was $13.5k.
Then on the trade in my care was worth $13k retail and $8.5k to $9.5k for trade in value, they offered $4.5k. They wanted to make $11,000 of profit on this deal. I don't mind if they make $2k on a car deal, but to make $11k on a $13.5k sell is not the dealership I want to do business with.