How long can a driver remain in the passing lane on the Autobahn?

Answer: B — Only when passing other vehicles

On the Autobahn, a driver is permitted to remain in the passing lane only when actively passing other vehicles. This rule is in place to maintain smooth traffic flow and ensure safety on high-speed roads. Once a driver has passed another vehicle, they are expected to move back into the right lane to allow faster vehicles to overtake. This practice prevents congestion in the passing lane and allows for a more efficient use of the roadway. Remaining in the passing lane for other reasons, such as personal preference or to maintain speed without passing, can lead to traffic build-up and increase the risk of accidents, as faster-moving vehicles may have to maneuver around slower traffic. Thus, using the passing lane responsibly is essential to uphold safety standards and the intended function of the Autobahn.