Well, I purchased the V-6 version, about 3 days ago. My wife seems to be not able to kept from punching the accelerator. I have to hold on as she rounds curves. For me, I like how it drives. Close to the ride of my XTS. The transmission seems to shift smoother than the XTS. Yet, the XTS seems to have a smoother ride. Both, I like. I like the look of the CT5; that is what caught my attention (Evergreen with tan seats). However, the drive kept my attention. It seems to respond well, when the accelerator calls for more speed. I like how it corners also, similar to my XTS.
For whatever the reason, we seem to like how Cadillacs ride. We looked and drove other brands of vehicles (Lincoln, Buick, GMC, Chevrolet). And, I thought that I would not buy another Cadillac. Yet, I did. And so far, I am pleased with the purchase.
If you have the opportunity, try the 2021 V-6 version. If more power is desired, try the V-series. When we purchase ours, someone was purchasing a V-series CT5. It has about 25 more horse power (360hp). And, he stated that he loved how it drove. For us, it would mean tickets. It would be hard not to let it roll.