Great update, but there are still a few problem, mostly with the lights.
I updated from my old, standard Z to z16, my headlights were under the '6' button ('3' is used for my ignition).
When I pressed '6' the lights came on but when I released the button they went out again, just like in the standard Z. I tried it with both the XFG and the XRG. If I change the light button back to '3', nothing changes. I haven't yet tried it on a fresh install of patch Z.
Another thing, I really like the lights inside (shift up, handbrake, indicators and headlights), but the position of them changes, cockpit view is different from chase view.
I also seem to have lost the ability to keep the indicators on as long as I press the button and don't touch any other button while holding the indicator. Maybe a small change/improvement, if it's possible, could be to separate the left and right indicator so you can see on witch side the indicator is on.
V / TAB / P / HOME / F1 / F2 / F3 / F / SHIFT+M / N work in options-thing works most of the time, in works in every category in options except 'options > controls'.