They will give you a free appraisal at any CarMax dealership. my appraisal took approximately 30 minutes and I had an offer. The offer is good for 7 days. You can also use that offer as leverage if you trade your car in at another dealership.
They will give you an offer but it'll be trade in level as they'll have to wholesale the car. It's not likely they would be able to sell the car on the lot. For a car that old try to sell private.
Is there a difference between the size of CarMax locations for getting a fair offer?
Possibly. They will give you a quote based on the shape your car is in. Check KBB before you go, so you know if they are being fair.
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