Is CarMax's online offer the same as their in-store offer?

CarMax says its online offer is a real offer, not an estimate, valid for 7 days, and it uses the same appraisal criteria online and in-store before verifying the car in person. If the car's condition matches what you described, the offer should hold. If the car has undisclosed damage, mechanical issues, or higher mileage, the in-store appraiser may adjust it down. Bring the car in a clean condition and disclose any known issues upfront to avoid surprises.