On the road is sign 405 and a motorcycle overtakes a car?

1. Correct answer: According to the sign both vehicles are prohibited from entering this road.
2. According to the sign a motor-cycle is prohibited to overtake a car.
3. According to the sign a car is prohibited to overtake a motor-cycle.
4. According to the sign overtaking is prohibited.

WhySign 405 shows both a car and a motorcycle: entry is closed to all motor vehicles. So neither the motorcycle nor the car may drive here, and the question of overtaking does not arise.