Which type of vehicle is prohibited to overtake another overtaking vehicle?

1. Motorcycles.
2. Correct answer: Buses,(not including minibus), commercial vehicles and work vehicles with an all-up weight of more than 3,500 kg.
3. Motor vehicles with an all-up weight of more than 4,000 kg.
4. Commercial vehicles and work vehicles with an all-up weight of 3,500 kg or less.

WhyBuses (not minibuses), commercial vehicles and work vehicles over 3,500 kg may not overtake a vehicle that is itself overtaking. Their size does not allow such a maneuver.