You want to overtake a truck with a trailer. What must you be aware of when doing so?

When overtaking a truck with a trailer, it's important to be aware of several key factors for safety and compliance with German traffic rules:

1. The necessary overtaking distance is increased because of the trailer. This is due to the fact that the overall length of a truck-trailer combination can create blind spots and increase the space needed to safely maneuver around it.

2. The external bodywork of the truck-trailer combination can conceal smaller vehicles in front of it, which may not be visible to you when you're attempting to overtake. This makes it crucial to ensure that the road ahead is clear before you attempt to pass.

Notably, the third choice, that you may only pull out to overtake once you are directly behind the truck-trailer combination, is not accurate. It fails to account for the fact that you should also consider the traffic conditions and visibility ahead, rather than just your position relative to the truck. Therefore, choosing options 1 and 2 provides a comprehensive understanding of the risks involved when overtaking such combinations, aligning with German traffic regulations designed to promote safety on the roads.