Did a road trip down the coast last year – flew into Zadar, then drove down the coast to Dubrovnik, staying at various spots on the way.
Driving was easy, the roads were virtually empty.
The people I found quite stern at first, but genuine and friendly underneath.
Zadar – quiet city, old town is nice, not much in the way of beaches nearby
Visit the national parks – Krca was great
Makarksa riviera great for sandy beaches, but very busy.
Split – Loved it here. Great bars, lots of nice beaches, quite cosmopolitan, but not too expensive. Old town was lovely. Eat a chivapi!
Dubrovnik – Very pretty old town, good for island hopping, more expensive than other cities, gets busy when the cruise ships roll in.
Loved the trip, and would definitely go back. We’ve pencilled in a city break in Split again.