In all conditions
Before any long journey, take a few minutes to check the tread and pressure of your tyres (the legal minimum tread depth is 1.6mm of 100% of the tread).
It’s also sensible to keep an emergency kit in your car just in case. These often contain things like a high-visibility vest, jump leads and basic first-aid supplies. Everyday items like water, a blanket, phone charger and paper towels are also useful.
Some countries ask you to carry certain items by law – like first-aid kits and warning triangles – so check before you set off.