Legal Question in Civil Litigation in California

If the seller knew or reasonably should have known that the car would break down or not be able to pass the smok check, and that the buyer was not aware of that, then they were defrauding the buyer and have to return the money. If you sell a bag to someone saying that there is a pig in it and there is not, but they do not look until later, do you think you get to keep the money? "As is" means you are not hiding something from the person, not that they take what they get.