[aznatama]

There's no buyer's remorse in Cali, so you'r stuck with the car. The legal documents you signed state what you paid for the car and what it includes. Means nothing what the dealership told you since you have no proof of anything. Sales may give you stuff, but the contract writer may "inadvertently" leave things off. Those long forms they use cost like $15 ea or something... I've made some dealerships go through 4-5 of them because they always got something wrong on it. you could fight it and maybe they'll take the car back, but since the papers are electronically transferred to the DMV, it's probably listed as used now.

Basically, LOOK AT YOUR CONTRACT and any forms that show what you HAVE NOT RECIEVED yet. If you have nothing showing that, then they don't legally owe you anything.

Lastly, live and learn. a Lease is with the bank, not the dealership. You NEVER tell dealer what you want to do, ALWAYS negotiate the BEST PRICE before talking about buying/financing/leasing.

Of course, there's plenty of info we don't know yet, so it's a bit hard to give accurate advice here. If you feel you really were screwed, you could always go consult an attorney.