The answer seems to be: (paraphrasing) "I thought I had way (like thousands of coins more) money in another wallet that I had actually already spent".
Was that before or after he bought himself the Bentley?
He claims that expensive cars was one the fews ways people were able to move money into the country because they held value well. As far as I can tell people actually did do that. He claims that is what he was doing. He wasn't selling the bitcoin invested in Cyprus, obviously, and it was not possible to just transfer cash in.
Whether you believe him or not, it does seem to be a legitimate reason.