The Lingenfelter CTS-V 378 CID LSA is a high performance version of the 2015 Cadillac CTS-V producing over 800HP. It uses the same supercharge as the Corvette ZR1 tuned to over 700HP.
But the suggestion sort of includes the wagon. I only said coupe as it would be the one I would have chosen if I was going for one particular bodystyle. I'm not a fan of the wagon, taillights go up too high