My last Cadillac was a 2007 DTS luxury with the magnetic suspension . My new 2017 CT6 has the magnetic ride as well but with very little rubber between the road and the pretty 20" wheels you feel the bumps like never before. I kept the 2007 for a few weeks and can't believe how much difference in the smoothness of the ride the 2007 has over the new 2017 and have to believe these low profile tires with large wheels must make up the difference. As for warranty, I am pretty upset that you do not cover these wheels since they come with the upgrade package. I have a strong feeling the first large chuckhole I encounter will damage the tire and wheel. NOT GOOD BUISNESS for such a great expensive vehicle. By the way, this is my 5th Caddy. I love everything else about it, but I always bought for the smooth ride and this may lose my confidence.
After test driving a few of the 2017 CT6 models, I have concluded this is not the perfect car for me at this time. First of all, like many high end luxury vehicles, this car is air tight. Therefore, when all the windows are up, it is difficult to get the doors to close without slamming them. That's the reason why many of it's competitors went with automatic soft closures for the doors, like the trunk. Next, a rear wheel drive is not available with the 3.6L engine. Though I live in the snow belt next to one of the Great Lakes, I have never found the need for AWD as long as I use the right winter tires. I love the way rear wheel handles. I will never own FWD again, but would do an AWD as long as primary power comes from the rear. And, I won't be sold on a turbo charged 4 cylinder engine forced to work hard to act like a 6 or an 8. Besides, now you are stuck using premium fuel. Next, I dislike steering wheel paddle shifter's and want to do my manual shifting on the stick in the center console. And, I was hoping to be able to select something other than black for the dashboard and trim without having to move into the Platinum model. What with the rear camera mirror? It actually made me nauseous looking at it. Otherwise, it is a very good looking vehicle and would most likely own one if it at least had the door closures. I'm not going to slam doors on my vehicles. I liked many of the features like heads up display, start/stop technology and brake hold. With just a few more changes, I can see me behind a wheel of a CT6.
Ride is awful for a Caddy. Low profile tires is the culprit. hit a curb, no tire scrape just grinding of the very expensive wheel. It happened with my 2013 XTS and the CT6 with same type of low tire will cause the same problem in addition to causing a bumpy ride. The smoooth Caddy ride generated a lofty reputation. It is sad that it is being abandoned due to wrong tire height is being used.
Buyer Beware. If you are committed to a CT6 insist that you road test your intended purchase for a few days before making the deal. First, I have owned 12 Cadillacs and was hoping that the CT6 was going to be the new flagship of the Cadillac fleet. It's not. . This disaster has the most crude, rough shifting 8 speed transmission that won't 'learn and adapt' and gets confused about which gear to crunch into. My CT6 has build-quality issues as my car needed to have its entire front end reassembled because of a mis-aligned fender that got crunched by the front door. My CT6 experienced a catastrophic rear axle hub/bearing failure in its first 200 miles. If you don't have access to German smooth autobahn pavement, stay away from the 20" wheels and magnetic suspension . . . the car will shake apart on normal roads. The AC is weak and has issues with the thermostat's control of its fan speed. Cheap hard plastic interior with a poorly designed center console featuring a useless cell phone charger. The rave reviews on-line must be based on quick test drives and photos of this otherwise nice looking sedan.
I currently drive a 2013 CTS and received a 2017 CT6 as a loaner car. Interior space is awful, I don't like the seat and I feel cramped inside. The roof is lower so my head is practically hitting the roof and I'm only 5'8. Overall, not impressed at all.