You are driving a slow tractor at 20 km/h on an open road with a continuous solid white centre line (Sperrlinie). Are faster cars behind you allowed to cross the solid line to overtake you?

1. Yes, because overtaking a vehicle that cannot exceed 25 km/h is expressly excepted from the Sperrlinie rule
2. No, crossing a solid longitudinal line (Sperrlinie) is prohibited under StVO § 9, even to overtake a slow tractor
3. Yes, provided the whole manoeuvre is completed within 100 metres
4. Yes, if the tractor driver waves the following vehicle past