Are you allowed to overtake the green vehicle by passing it on the right?

Why this is the correct answer

In Spain, the general rule is that overtaking must always be done on the left side of the vehicle being passed. Overtaking on the right is only permitted in very specific exceptions: 1. When the vehicle ahead is clearly signalling its intention to turn left or stop on the left side of the road. 2. When driving on urban roads with at least two marked lanes in the same direction. 3. When overtaking a tram on a two-way road where the tram runs along the centre. In this image, we see an interurban road (outside a built-up area) with a single lane in each direction. The green vehicle ahead shows no visible sign of signalling a left turn — no flashing indicator is visible, and the vehicle is not positioned toward the left. Why is option C not correct here? While it is true that a left turn signal is one of the legal exceptions allowing overtaking on the right, option C would only be correct if the question were asking about the general rule in the abstract. However, the question asks about THIS specific situation. Since the green vehicle is clearly not signalling a left turn, none of the exceptions apply, and the answer is simply B — No. Note: Even if you think there might be a side road on the left, what matters is whether the green vehicle is actually indicating a left turn. Since it is not, overtaking on the right is prohibited.