What is the maximum speed you are allowed to drive a car with trailer on roads outside of built-up areas?

In Germany, when driving a car with a trailer on roads outside built-up areas (rural roads), the maximum allowed speed is generally 80 km/h. This limit applies to ensure safety because trailers can affect the vehicle's stability and braking distance. It is important to follow this speed limit to maintain control, especially on curves and uneven surfaces common outside cities. Remember, even if your car's normal speed limit is higher, you must reduce speed to 80 km/h when towing a trailer on these roads.