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 Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,063 off RRP*Used from £24,949
Volkswagen Polo

Volkswagen Polo

RRP £15,270Avg. savings £2,398 off RRP*Used from £6,460
Audi A3

Audi A3

RRP £30,210Used from £9,995
MG MG4

MG MG4

RRP £27,005Avg. savings £3,637 off RRP*Used from £8,695
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Bold new Hyundai Tucson looks ready to conquer the family SUV class
New Hyundai Tucson Mk5 - front static

Bold new Hyundai Tucson looks ready to conquer the family SUV class

The new fifth-generation Tucson combines heavy-duty style, cutting-edge tech and, supposedly, best-in-class cabin space
News
19 Aug 2026
New Peugeot 308 to get radical fastback looks
Peugeot 308 Fastback render - front 3_4 Avarvarii

New Peugeot 308 to get radical fastback looks

Peugeot knows buyers are moving from hatchbacks to SUVs, so it’s considering a very different look for the 308
News
17 Aug 2026
New Dacia Spring 2026 review: with more power comes greater ability
Dacia Spring Extreme - front tracking

New Dacia Spring 2026 review: with more power comes greater ability

A larger and more powerful motor has transformed the Spring into a surprisingly accomplished motorway cruiser, although previous pitfalls remain.
Road tests
20 Aug 2026