Hi Encounterman,
Three leave stars mean, the car is very best at eco mode - eco = economical in our language 
subsequently two star means average, and one means low! but they are still in eco mode - should give you above 18 kms/ltr. Mine 28.3 with three stars at around 11 pm within city - Lahore.
with respect to you LCD please contact the person, who received B/L and Export Certificate, for the clearence purposes, asap. He must have the map card. I got it through my agent. YOU WILL NEED TO ASK THEM! they are freaking assholes.