Wow, I think that I can respond to several 'points' on this thread.
Being the owner of a MKZ hybrid and being 51, I can address the powertrain and the owner demographics.
While I don't consider my MKZ hybrid a sports car, it does surprise people when I need to quickly accelerate, especially from a standing stop. I have more than a couple passengers say, "this is a hybrid? You must consider that Torque is what makes it go zoom and that the torque curve of an EV is flat as a table. I have had many powerful cars, some to the point of being silly, (a well massaged '98 mustang cobra with a 150hp shot of giggle juice). Granted I don't drive my MKZ nearly the same that I drove that mustang. I bought a hybrid for a reason. :-)
Demographics. It wasn't too long ago that I had that Mustang. I own two motorcycles. I am getting set to ride 1,100 miles one way to attend the Sturgis Motorcycle rally. I just sold my F150 FX4, (lifted, off road suspension, blah blah). I am have two young children, (oldest is 7). My social circle is (on average) over 10 years younger than me. My point? I am a Lincoln owner. I believe that I am the new demographic.
I went in looking at a Fusion or Fusion Energi but opted for the MKZ because I felt that it was worth the additional price and that it was time for a nice sedan. Admittedly, I was a bit surprised at my decision at first, I too thought of Lincoln as an older person's ride. I have not once regretted my decision.
I don't see it as I have reached the Lincoln age demographic. I see it that Lincoln has expanded its reach to include me. :-)
Whew, sorry for the lengthy post.