Each year millions of Brits jet off to Italy on their holidays, but they could find themselves in hot water if they make one simple mistake.

Exploring the picturesque European nation by car can be one option to get around. And while the notion of hiring a car abroad might sound daunting to some, travel blogger Gregor Brown says motorists should “take the plunge”.

However, if you do find yourself hiring a set of wheels in Italy, he says there is one mistake you’ll want to avoid. Gregor said: “One thing you should never do in Italy is drive without your driving licence ID and also your car documents.

“Always carry your rental car agreement if you’re renting a car and the car registration documents along with your driving licence. The Italian police set up checkpoints on the open roads and if they stop you and you don’t have these important documents, you’ll get a hefty fine.”

According to the RAC, drivers in Italy should carry their licence, a form of identification such as your passport, the car’s motor insurance document and the V5.

Gregor meanwhile says drivers ought to be aware of the roundabouts in Italy. He said: “Never hesitate at roundabouts. In Italy, roundabouts are like a gladiator arena, if you hesitate, you’re out.”

He also warned drivers to be aware that smaller towns and villages have “narrow roads” meaning they will have to allow other road users space to pass. One costly mistake he says drivers can often make is forgetting to pick up their ticket if they go through a tollbooth for the motorway.

He says this can lead motorists to paying “full fare” when they want to leave. Gregor’s “pro-tip” was to tuck the ticket inside the sun visor until you want to leave the main road.

The YouTuber says another problem many drivers in Italy face is the "ZTL" zone. The red "Zona a Traffico Limitato" signs are for areas where traffic is restricted.

If you're stopping at a hotel inside a ZTL, Gregor says you should contact the business who can often register your number plate with the local authority. If the sign is green however, he says you can "drive on in".