Skip advert
Advertisement

Warning triangles

Carrying a hazard alert sign or lamp is vital in case your car breaks down. We test seven options

Travel abroad and the chances are local laws will require you to carry a warning triangle in your car's boot. In fact in some countries such as Spain, you need two - and a fluorescent jacket!

For driving in the UK, carrying a hazard warning sign is not compulsory but is a sensible idea, given the dangers of being stranded on the roadside or motorway hard shoulder, where staying safe depends on yourvehicle being clearly visible to other motorists. Fitting a triangle in a car's boot is usually easy - many models have room for them in the spare wheel well or behind side panels.

There are many versions on offer, available from supermarkets, DIY stores and traditional accessory shops, as well as hazard lamps which can be used instead of a triangle. But which should you go for? We tested seven best-sellers to find out.

Verdict

The brightest performer was the pricey Highway Safety Light, but it failed to win this test because of its poor build quality. The triangles were well matched, with the Speeding GH-074 just pipping the Metro to take our Best Buy award, thanks to good reflective perform- ance and superior design.

Skip advert
Advertisement

New & used car deals

Volkswagen Golf

Volkswagen Golf

RRP £24,625Avg. savings £2,565 off RRP*Used from £8,995
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £7,528 off RRP*Used from £11,213
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,762 off RRP*Used from £9,574
Volkswagen Polo

Volkswagen Polo

RRP £14,480Avg. savings £2,084 off RRP*Used from £6,888
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Dacia targets 30% more UK car sales, thanks to good-value, larger cars
Dacia Striker- full front

Dacia targets 30% more UK car sales, thanks to good-value, larger cars

Dacia’s UK boss speaks to Auto Express about her bold plans to seize market share
News
27 Mar 2026
SEAT Arona vs Hyundai Bayon: Cheap 'n' cheerful small SUV showdown
SEAT Arona vs Hyundai Bayon - front tracking

SEAT Arona vs Hyundai Bayon: Cheap 'n' cheerful small SUV showdown

SEAT has updated its long-running Arona SUV and Hyundai’s done the same with the slightly younger Bayon. We find out which one is best.
Car group tests
28 Mar 2026
Porsche Cayenne Electric review
Jordan Katsianis with the Porsche Cayenne Electric

Porsche Cayenne Electric review

The Porsche Cayenne is arguably the most convincing electric SUV yet, but performance might have been prioritised too much in a world where efficiency…
In-depth reviews
27 Mar 2026