Looks like the original Caddy that zigs will now have some serious firepower under the hood. Blower is a smaller version of the 2.3L TVS in the new C6 ZR1.
http://www.autoblog.com/2008/01/08/detroit-2008-2009-cadillac-cts-v-revealed-with-550-hp/
http://www.autoblog.com/2008/01/08/detroit-2008-2009-cadillac-cts-v-revealed-with-550-hp/