At what permissible speed are you allowed to travel when driving a passenger car pulling a light trailer on the highway?

The permissible speed for a passenger car towing a trailer on a motorway is 80 km/h. This is derived from Art. 20 para. 3 pt. 1 of the Road Traffic Act, which specifies lower speed limits for combinations of vehicles. It should be noted that this is a significantly lower speed than the standard 140 km/h for a passenger car alone, which is intended to ensure the safety and stability of the vehicle combination.