Liari,
Have you test-driven a MKZ in any configuration as yet (Hybrid, 2.0L Ecoboost, or 3.7L V6)?? If not, you've got to try all three before deciding on the MKZ as a possible option or not.
I have done extensive test drives in each one and I too am now wavering, but for different reasons. I have followed the design of the MKZ from when the first concept drawings came out. I have loved the looks of it ever since. And then when I found out about all the features it would have (pano roof, advanced technology, clean interior design, etc.) and that it would be available as a Hybrid that got 45/45 mpg, I was darn sure I would own one this year! But now I'm not so sure. In fact, I'm pretty convinced that I will NOT buy a Hybrid if I even buy an MKZ. I really, really, REALLY wanted to like they Hybrid MKZ and for it be THE car for me. But I guess I'm too much of a lead-foot power-junkie. The 188hp and 129lbs-ft of torque it has just feels too weak IMO. And if the darn thing will only return MPG in the 30's (especially if driven in the more "spirited" style that I tend to drive), then I'd rather give up some MPG and either get the 2.0L Ecoboost or the big V6 and not feel like the car is underpowered. Plus NOW I'm wavering on the MKZ entirely because of another new car I had for an extended test-drive. For a few $K more, I could buy the new Infiniti Q50 Hybrid that has 360 HP and gets 28 city, 34 hwy, and 30 combined. And it is a full-on sports sedan rocket car! Wow, is it FUN to drive! It has tons of power and returns better mpg than the MKZ in either the Ecoboost or V6. Of course the down side besides the additional cost, is that the Q50 doesn't have some of the many amenities of the MKZ (e.g. Air Conditioned front seats, heated rear seats, power trunk lid, parallel park feature, pano glass roof, heated steering wheel (only available on AWD models of Q50).