I went to a Cadillac dealership this weekend to check out some ATSes and ATS-Vs as potential replacements for my diesel A3 in case I end up turning it in later this year. I didn’t drive any of them yet (the only ATS-V they had was on the show floor, and the only ATSes they had were the base 2.5L 4-cyl ones; no 2.0…