Not really.
> Z-mode means the front and rear wings are closed which generates more downforce for the corners. In X-mode, the drivers can open the flaps which will reduce drag and increase speed.
Sure, but it's no longer about a gap to the car in front.
The problem with DRS is the zones and only being able to use it when close behind another car. My understanding is the X-Mode can be used pretty much anywhere and anytime.