The CTS-V is one bad mother, I would take over a 3 series any day of the week and twice on Sunday's.
Supercharged 6.2L V8 putting down 556 horse power and 551 ft lbs of torque... A 3 class dreams about those kinds of numbers.
19x10'" wheels with monster 285/35/19 Michelin pilot's
Read the following link, 190mph with the 6 speed manual transmission and the following quote, " the company held nothing back in the ride and handling department. For those forgetting, the four-door version was the first sedan to crack 8 minutes around the infamous Nürburgring, and was the fastest four-door in the world for a few years, until the new 2012 M5 gave the ‘Ring a run, which is said to be a few seconds faster around the track.