I did not know the 550 was on its last legs, I thought it came out in 2009, but I don't know....
Voila 3D mode, you cannot change colours or the info boxes bottom right and left, they do change though when you start navigating
If you touch the either the bottom right or left screen it will change to the compass (info) screen If you then touch, say Max Speed
there should be a small green tick (at least there is on the 220) then "back" it will show the max speed on the right hand corner and is your target to beat 
What map detail do you have your settings on? If you pic is showing your home then you should see side streets etc.
Try
Spanner (Tools) - Settings - Map - Map Detail (mine is on normal)