Hmmm, that CTS-V is the only reason I would ever consider a Cadillac, and frankly I really want to get one - a little out of price range given my racing hobby (I need a big truck which is $$)
edit - work got in the way there

anyway, if I did not need the large truck for towing I would seriously consider either the Vette or the CTS-V. If I somehow "get over" the road racing, I would get the 550HP Caddy for great street performance with room for friends v. a 2-seater. I have considered selling the race car and the truck altogether and getting the Z06 tho' and just drive to and from the track...
In any event, my point is little organizations like these within GM (and auto mfrs in general) keep their brand interesting and in the public eye - the Vette has been considered a loss-leader for years for example but I wouldn't give two sh!ts about GM if it were not for the Vette and the CTS-V quite honestly. Those two cars are so impressive Top Gear just aired in the US with three American cars to drive at the Salt Flats... hmmm, oddly enough, two were GM, the ZR1 (possibly the best car ever IMHO given bang for the buck) and the CTS-V and the pitiful Challenger that Chrysler didn't even provide.
Had it not been for the team developing the CTS-V, I can guarantee Top Gear wouldn't even utter the Caddy name without some sad fat American pun after it. Instead, Captain Slow ended up loving that car and it outperformed the Challenger in curves and straight line.