Do some research to determine what salary you can expect from a position at CarMax, and use your current earnings and projected earning in your current position over the next year as a starting point. Be open and honest. Transparency is the best choice when salary-based questions arise. Also, familiarize yourself with the benefits they offer and where they match or are lacking compared to what you currently receive. Anything that lowers your cost of living can equate to income. For example, they advertise they offer competitive compensation, with hours that fit your life and a 401K match. Some benefits they say you may be eligible for include "Health Coverage, Car Discounts, Paid Time Off, 401K, Pet Perks, and Tuition Reimbursement."