Having spent a month updating SYNC3 on my Ford I finally could try MRA using Android Auto today.
A simple set destination with no waypoints. All worked fine but there seemed to be a couple of quirks to the car display with Android Auto.
The upcoming road and upcoming instruction box was not updating - although the correct location was shown on the map and the voice instructions were correct.
The actual speed only showed 5 to 15, even when I was doing 70mph on a motorway, or sitting stationary in a layby.
I was using navigation in offline mode.
I could not see what was displayed on my phone as i don't have a cradle to hold it in my car.
I do have a screen shot - happy to show the MRA team, but not public display.