Unlike the Netherlands, Bulgaria has high mountains and many mountain passes. Outside temperature can change quickly for a relatively short period when driving high up....

An overview of speed limits in Bulgaria. For cars and vans, the maximum speed permitted in Bulgaria on motorways is 140 km/h; on expressways, it is 120 km/h; on main roads and minor roads outside built-up areas, it is 90 km/h; and in built-up areas, it is 50 km/h, unless otherwise stated by traffic signs. The following are the permitted maximum speeds in Bulgaria (km/h) for all vehicle categories