On the A27 towards Breda your wide caravan hinders your rearward view through the normal outside mirrors, while the traffic info announces congestion at the next junction. What is required?
Fit extra outside mirrors on the car
Nothing — the inside mirror is enough then
Explanation
False — trap: a reflex from a different situation misapplied here. Book p.230: if your rearward view through the normal outside mirrors is hindered by the trailer, you must fit extra outside mirrors. The inside mirror does not suffice.