60 km/h (37 mph) Buses carrying standing passengers Motorcycles pulling trailers 80 km/h (50 mph) Vehicles with maximum allowed weight exceeding 3.5 t (except passenger cars) Passenger cars and trucks with trailers Buses 100 km/h (62 mph) Passenger cars pulling trailers certified for 100 km/h Buses certified for 100 km/h not towing trailers[26]