Alpha-based CTS won't be a 2013 model. Probably a year or two later.
ATS, on the other hand, might be available by the end of next year...provided everything goes well...
FenwickHockey65's GM Thread!
2003 GMC Envoy SLE - Airaid Cold Air Intake, Gibson Performance Catback Exhaust
2007 Ford F-150 XL SuperCab (State-issued)