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

MG MG4

MG MG4

RRP £27,005Avg. savings £3,079 off RRP*Used from £10,558
Audi A3

Audi A3

RRP £10,750Avg. savings £2,811 off RRP*Used from £10,750
Kia Sportage

Kia Sportage

RRP £11,960Avg. savings £3,710 off RRP*Used from £10,950
Skoda Kodiaq

Skoda Kodiaq

RRP £39,390Avg. savings £4,522 off RRP*Used from £26,928
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

EV drivers brace for £1 per kWh charging prices as standing charges skyrocket
Fiat 500 connected to a Gridserve rapid charger

EV drivers brace for £1 per kWh charging prices as standing charges skyrocket

A new impact assessment of operator standing charges estimates the cost of plugging in could exceed £1 per kWh before VAT and running costs are even c…
News
12 Nov 2026
Car Deal of the Day: Popular Jaecoo 7 hits a new low at £222 a month
Jaecoo 7 - front action

Car Deal of the Day: Popular Jaecoo 7 hits a new low at £222 a month

The Jaecoo 7 has taken the UK by storm – and it’s easy to see why at these prices. It’s our Deal of the Day for 11 November.
News
11 Nov 2026
New BMW X5 40 xDrive M Sport review: the iX5 is better in every way
BMW X5 40 xDrive - front tracking

New BMW X5 40 xDrive M Sport review: the iX5 is better in every way

We get an early taste of the new BMW X5 ahead of its official arrival
Road tests
11 Nov 2026