While visiting Hennessey Performance Engineering a few weeks back we asked John if his new Cadillac CTS-V Wagon was going to stay stock or if he had big plans for it.  His answer was a simple “I might just do some basic bolt-ons to it.”  We forgot that basic bolt-ons with the 550-horsepower LSA engine can yield an extra 100-horsepower.  Slap on a set of drag radials to help that extra 100-horsepower make it to the ground and you’ve got the ultimate sleeper that is capable of running with the legendary 911 Turbo.  Enjoy the video provided courtesy of Hennessey Performance Engineering.