1. The majority of Bulgarian road signs are written in both the Latin and Cyrillic alphabet. If your rental car doesn’t come with a GPS navigation system, it’s advisable to map out your exact route before departure.
2. Winter road tyres are recommended if you’re driving during the colder months. Between 1 November and 31 March, drivers are legally required to carry snow chains and fit them when indicated by the relevant road signs. Note that the speed limit is 50kph (31mph) while they’re in use.
3. While most major roads are up to European standards, you may come across some poorly maintained streets in Bulgaria. Beware of potholes, particularly in rural areas. Also, watch out for cars driving at night without headlights, as well as slow-moving farm machinery or stray livestock.