What must you fit to your car if you are going to tow a trailer wider than your car?

What must you fit t… — Exterior towing mirrors

The answer options

Rear parking sensors
A rear-view camera
Exterior towing mirrorsCorrect
Projection markers

Why the other options are wrong

“Rear parking sensors” is a distractor. It does not meet the standard the question is testing, which exterior towing mirrors does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.
“A rear-view camera” is a distractor. It does not meet the standard the question is testing, which exterior towing mirrors does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.
“Projection markers” is a distractor. It does not meet the standard the question is testing, which exterior towing mirrors does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.

Why that is the answer

When towing a trailer or caravan that is wider than your car, standard wing mirrors will not give you a clear view behind. You must fit exterior towing mirrors to ensure you can see clearly along both sides of the trailer and behind you. This is a legal requirement set out in the Highway Code. Cameras or rear sensors cannot legally replace these extended mirrors.

What vehicle loading covers

· Driver responsibility for load security and legal weight limits
· Loading a trailer or caravan and the effect on stability
· Stabilisers, breakaway cables and towing mirrors
· Roof racks, roof boxes and the effect on fuel consumption

Mistakes learners repeat on this topic

· Loading heavy items high or towards the rear of a trailer
· Assuming a stabiliser corrects a badly distributed load
· Believing the passenger is responsible for a child's seat belt
· Forgetting that a roof load raises the centre of gravity in crosswinds

Instructor tip: Any snaking-trailer question resolves to slowing down gently — never brake hard or accelerate out of it.

How this comes up in the real test

Questions from vehicle loading appear throughout the 50-question multiple-choice section, and the wording changes between versions. Learn the rule rather than the sentence: the DVSA can ask the same point from the opposite direction, and a memorised answer falls over the moment the phrasing moves.

The pass mark is 43 out of 50, so seven wrong answers is your entire margin. If a whole category is shaky, run the topic practice below until you are getting every question right for the right reason, then go back to full mocks under the clock.

Practise Vehicle Loading Sit a full mock test