Having been behind the wheel of the GS-F. It's a fantastic car with the build quality to last ages.. only complaint is the USELESS corporate infotainment system which sucks worse than the system in new Hondas. I like the idea that you can poodle around in Eco mode and it's smooth/quite In any other color but that HIDEOUS orange it looks pretty good, needs some wheel spacers though. I have't driven a CTS-V but I have sat in one.. It just doesn't feel like a quality product that will last 100k, if it does it will rattle around
The GS-F won't sway people away from BMW, Benz or Audi... it's for the person that owned a Jag XF-R and got tired of driving a loaner Evoque around.
Fact the GS-F is actually a better car over the RC-F..