Glossary
Driving with a trailer means that you drive a car with a trailer attached. You can drive a maximum of 80 km/h with a trailer. If the total weight of the trailer is more than half of the car's curb weight, you may only drive at 40 km/h.
It is also important to be aware that the car's driving characteristics change a lot when you attach a trailer. Among other things, the braking distance will be longer and if you have a large trailer that is covered, any gusts of wind can push both the trailer and the car to the side.