Car rental guide
Serbia is often treated as a Belgrade-only stop, but a car opens up Novi Sad's Petrovaradin Fortress, the monasteries of the Fruška Gora hills, and the Đerdap Gorge along the Danube toward the Romanian border, none of which are well covered by the country's regional bus network beyond the main highways. Belgrade itself is compact enough to explore on foot or by transit, so most visitors rent once they're ready to head into the countryside. Belgrade's Nikola Tesla airport is the main pickup point for most itineraries.
Driving and renting a car
Serbia's main motorway corridor is well maintained and tolled, while rural roads outside it vary more in condition, especially heading toward the southern mountains or Đerdap Gorge. Driving is on the right. Border-crossing traffic into Hungary, Croatia, or Romania can back up at peak holiday periods, worth factoring into any cross-border itinerary's timing.
Why compare local rental companies
Serbian rental prices tend to be lower than in EU neighbors, and it's worth checking whether cross-border travel into Bosnia, Montenegro, or non-EU routes generally is included, since Serbia's status outside the EU means some contracts treat these crossings differently than an EU-to-EU rental would. Deposit and card requirements are fairly standard at Belgrade agencies but worth confirming for smaller regional operators.