Autobahns of Austria
Unlike German autobahns, on Austrian autobahns a general speed limit of 130 km/h (81 mph) is set, although as of August 25, 2018, the FPÖ government has been going on a trial for a possible speed limit increase to 140 km/h (87 mph) on the Autobahn 1 freeway. They may only be used by powered vehicles that are designed to achieve at least . While on the motorway voluntary stops, U-turns and backward driving are prohibited.
Highways in Croatia
The primary high-speed motorways are called autoceste (; singular: "autocesta"), and they are defined as roads with at least three lanes in each direction (including hard shoulder) and a speed limit of not less than . They are marked with a special road sign, similar to the road sign depicting a motorway/autoroute/autobahn in other parts of Europe. In Croatia this sign has green background. The national speed limit on an "autocesta", effective in case no other speed limits are present, is , with a legal tolerance of 10% on speeds over 100 km/h (as of 2009). The Croatian motorway (autocesta) network is long.