CarMax Strategy Analyst interview questions

I applied via college recruiting website. The interview was 1-on-1 with a Senior Analyst. The interview consisted of mainly behavioral questions. Be prepared to tell them why you want to work for CarMax. At the end there is a short "story problem" where you have to do some basic math. This part was fairly easy.

One on campus interview. Then a super day in Richmond at the Corporate office. Both personality and quantitative/ case interview questions. Employees were very friendly. During lunch, they assigned you to a group of current analysts so that you could ask them questions outside of the formal interview process. In such an environment it is easy to become too informal with the interviewers. That's where I think I went wrong.