I have ordered my Mustang, a ruby red GT convertible with nickel wheels for November 2017 (hoping it will be MY18 specification) and have written to Ford - in the form of customer feedback - to suggest a digital speedo as an urgent safety modification. Should just be a software tweak and present as per my Territory (great car, sad to see them go).
I have driven the convertible twice (both Ecoboost) and found it difficult to 'find' the speed on the analogue dial when there is light and shadow bouncing around the dashboard. Perhaps I would get used to it and am just used to the display in my Territory, but have seen many comment (UK, US and Australia) about lack of digital speedo.
If Ford responds I'll post their advice.
Regards