I originally has a 2013 MKZ Hybrid, I loved that car. I traded it in for a 2017 3.0 Twin Turbo. Sort of went from one extreme to the other.
While I loved the Hybrid mileage, lifetime calculated MPG was 41.08 MPG. I tended to use the MKZ on longer trips, vacations, etc - where I would typically get lower MPG because you are driving faster. Trips often as low as 35-38, while local driving was typically in the 42-45 range - once I learned how to drive how the Hybrid wanted me to drive! i.e. longer braking to recharge, slower starts, etc.
Both MKZ's were incredibly quiet and incredibly smooth, the newer one more so than the older one, as well as the MKC. If the MKC (upcoming 2020 Corsair) ever comes out in a Hybrid version, I would grab it in a minute since that is more of my local daily driver where I would take advantage of the MPG. These three Lincolns were the first Ford/Lincoln products I ever owned - and I was quite surprised and the fit and quality.
The MKZ being the vacation car was a little scary for me in the Hybrid version. Driving in the mountains and dodging trucks, I love the effortless power of the 3.0T engine. Or on those long stretches of interstate highway where trucks outnumber the cars, bobbing and weaving around those trucks is much easier in the 3.0T. Remarkably, while my lifetime calculated average in the 3.0T is right around 22 MPG, when you are driving fast on long stretches of highway - it has not been uncommon to get calculated MPG of 28-30 MPG with my high so far being 31.42 mpg.
Either choice is good, depending on your needs. It is just a matter of finding the right one for the right price!