No, it's not the same engine. The Maxima has the VQ35DE, 3.5L NA engine. The Q has the VR30, 3L twin-turbo engine.
The digital speedo (#2) is only available on 2018+ Q50's. You have these displays to choose from:There's a digital Speedo? That's what I used to leave the Max display on.
I didn't see that when I scrolled through the options. I tend to just leave it on the Stereo but I can see that by just looking to the right.