window etching
UV etching
anti-rust proofing
clear coat protector
cloth/leather protection
nitro fill
extended warranty full refund
All these are dealers ways for the dealer to make money. They cost nothing and they charge a few hundred dollars for it. A few dealers at least are switching to install or add accessories to every car (wheel locks, mud guards, trunk tray, all weather mats) at full retail. At lease these are things you can actually "see"
I had two dealers that gave me Costco pricing. After their installed dealer options, the price was the same. One had a "protection package" worth about 385. The other had 1800 of protection options, for which only the wheel locks was something you could actually "see".