Cross-Border Car Rental from Budva. Budva sits in the middle of Montenegro's coastline, so a rental car points two directions: north to Croatia (Herceg Novi, the Lepetane ferry, Dubrovnik) or south to Albania (Sukobin, Shkoder). The direction changes the fee, the paperwork and which car class you can take. Yes, you can drive a Montenegro rental into Croatia, Bosnia, Serbia or Albania — you need written cross-border authorization from your rental company, the original registration, and (heading south) a Green Card for Albania; the fee is a commercial surcharge, not a toll. The Green Card myth: Montenegro, Croatia, Bosnia and Serbia are in the Multilateral Agreement License-Plate Subsystem, so the plate proves insurance — a Green Card is NOT legally required for Croatia, Bosnia or Serbia. Albania is the exception (Green Card mandatory, about €15/14 days at the border). Kosovo is outside the Green Card system (border TPL about €15/15 days; often banned). Documents: the ORIGINAL vehicle registration (copies rejected), a written cross-border authorization naming allowed countries, the rental agreement, and a passport (EES biometric checks on the Croatian/Schengen side). North: Budva to Croatia is about 95 km / 2.5h via Tivat, the Lepetane-Kamenari ferry (€5 flat per car, ~10 min) and Debeli Brijeg (Jul-Aug queues 2-5 hours; Vitaljina passenger-only bypass 24/7). South: Budva to Albania is about 68-85 km to Shkoder via the Sukobin / Muriqan single joint checkpoint, usually smoother. The fee depends on destination: MyMontenegroCar prices Dubrovnik/Trebinje about €40, Medjugorje about €60, Mostar about €70 (indicative). Convertibles are commonly excluded from cross-border trips and premium/luxury classes are often barred from Albania and Bosnia — Budva carries more premium and convertible inventory, so confirm eligibility before you pay. Cross-border fees by company (indicative, Summer 2024, verify): MyMontenegroCar €40-70 by destination (convertibles banned); Europcar Montenegro €6.05/day capped at €60.50 (Kosovo/Greece/Bulgaria/Romania not allowed); Sixt €40 flat (Kosovo not included); MTL Rent €50 flat plus a 200 km/day limit, €0.10/km over; Stella Car €25 flat (Kosovo banned). GPS flags unauthorized crossings — insurance void plus AbbyCar €500. Serbia has a strict 0.03% alcohol limit and needs a vignette; winter tyres 15 Nov-1 Apr, minimum 4.0 mm tread.