I think the new one is somewhat more peppy than the old. Hard to tell but that's my impression. It seems to have a bit more lower end torque than the other.
We have now gone through the first service with the car. No problems at all except one.
When we bought it I found a set of alloy wheels and put the new tires (that came with the car) on those and bought new winters for the steel wheels that came with the car. I had that done at a tire shop so last week I decided to change the all seasons to the winter tires. I usually do this myself in the driveway, using the jack that comes with the car.
When I tried to get the jack out of it's mounting in the car I found that both the bolt that holds it in place and the jack itself, were so tight that they wouldn't budge. I'm not weak and I couldn't move them. With the help of some tools I was able to get it loose but stripped several threads on the bolt. Fortunately it did not harm the threads on the female (car) bracket. I chased them with a tap but they were ok. The dealer replaced the bolt when I asked so no big deal.
Just a heads up to check to make sure that the jack is able to be removed by hand, without tools.
I haven't calculated the fuel mileage lately but according to the readout it seems to be consistent with the first few tanks. I have the details just haven't got around to making the calculations.