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.
Speed limits in Germany
There is a general speed limit of 80 km/h (50 mph) for trucks with a GVWR over 3,500 kg (7,716 lbs) and for vehicles with trailers. For vehicles with a GVWR of over 7,500 kg (16,534 lbs) the limit is set to 60 km/h (37 mph) except on autobahns (also 80 km/h). For coaches and cars with trailers the limit is increased to 100 km/h on autobahns (under certain requirements). Posted speed signs for trucks are not common, they can be seen on some dangerous curves or descents.