A blind trade appraisal is a dealer's real offer on your car, put in writing before they know what you are buying from them or what you owe.
It is worth asking for one that way wherever you shop: when the appraisal and the sale are decided separately, neither one can be used to hide the other.
A trade-in and a new car are two transactions. When a store does them together it can move money between them, and the total is the only number that stays honest. Paying more for your trade and less off the new car, or the reverse, lands in the same place while looking very different on paper.
A blind appraisal separates them. The store appraises your car against the wholesale market, the auction data, and its own lot, without knowing what it needs the number to be.
When you ask a store for a blind appraisal, give it your car and nothing else.
No. Both are useful, and they answer different questions.
An appraisal is given on the car you described. A physical inspection can change it, and these are the usual reasons.
Stores do not usually charge for an appraisal, and you are under no obligation to accept one or to buy anything. The instant trade value on The Model Black is a separate market estimate, not an appraisal.
Many stores hold an appraisal for about seven days or a set mileage, whichever comes first, subject to the car matching what you described. The store states its own window with the offer.
At many stores, yes. Dealers buy cars they are not selling against, and a written appraisal can often be taken as a straight cash sale. Ask the store whether its offer stands on its own.
Not if you keep it to yourself until you have the appraisal. Then the number is set against the car and the market rather than against your loan.
That is normal and it is information. The valuation is a market range on cars like yours; the appraisal is one store's number on your car, shaped by what its lot needs, what it sees in the photos, and where the auction is that week. Getting a second number elsewhere, such as from another dealer or an instant-offer buyer, is the usual next step.
Know your car's market value before anyone quotes you, then compare offers made the same way: an appraisal of your car alone, in writing, with the date it holds through. In a state with a trade-in tax credit, add the tax the trade saves you before you compare a dealership's offer with a private sale.