Our trip in Bulgaria was very satisfactory et we enjoyed it very much. The car was nice et easy to drive.

In the car, we fund the maps of Bulgaria and of Sofia. The only problem was that these maps were in English and when you drive throughout the country, the signposts are in Cyrilic.
I know that Rentomobile can find maps in both languages. It could be very usefull to have this kind of maps in the car.

it's just a suggestion!