The computer security code printed on the back of Visa credit cards. The CW is actually the three letters C-V-V, but looks like "CW" because proportional fonts squash the two V's together. See CSC.

This weekend, NASCAR unveiled its latest multi-million dollar investment in Studio 43, a state-of-the-art production facility that debuted during the Xfinity Series race at Homestead-Miami Speedway.