If you drive a car with up to 15 seats, what's the maximum speed at which you can drive on the road once you go past this sign?

In the photo you can see a motorway with noise barriers and a flyover, and next to it blue signs D-9 "motorway" on both sides. When driving a bus with no more than 15 seats, you may travel here at a maximum of 80 km/h - answer C.

The Road Traffic Act sets out that a bus may travel on a motorway at a maximum of 80 km/h, and at 100 km/h only when it meets the additional technical conditions. The number of seats does not change this limit: every motor vehicle designed to carry more than 9 people including the driver is a bus, so a 15-seat minibus is also subject to the rules for buses, not the rules for passenger cars. The values 60 km/h (answer A) and 70 km/h (answer B) are too low - 70 km/h applies to an ordinary single-carriageway road. You cannot drive such a vehicle with a category B driving licence - you need a D1 or D entitlement.

Legal basis: Art. 20 para. 3 point 2 letter a and para. 4 and Art. 2 point 41 of the Road Traffic Act (Prawo o ruchu drogowym)