Argentina on a Spanish Licence — Why the IDP Is Non-Negotiable Here

For a Spanish driver, Argentina feels deceptively familiar — the same right-hand traffic, a shared language, motorways signed much like home. That familiarity is exactly what trips people up at the rental desk, because the one rule that changes is the licence.

Inside the EU your Spanish licence is all you ever need. Argentina is different: an International Driving Permit is required, not merely recommended. Rental companies ask for it, and a police stop without one can mean trouble. Arrange the IDP in Spain before you fly — it cannot be issued in Argentina, and it only validates the licence you already hold, so carry both together with your passport. If you are unsure whether your trip needs it, the driving permit checker confirms the requirement for the Spain-Argentina pairing.

With the paperwork done, the driving splits into two very different worlds. Buenos Aires is dense, assertive and fast — lane discipline is loose and you will be pushed at junctions, so don’t hesitate. Get out of the capital and the long-distance routes are genuinely good, but Patagonia is another story: vast distances, stretches of unsealed gravel (ripio), wind that shoves a small car around, and fuel stations hours apart. Plan the tank, not just the route.

Speeds will feel mostly natural. Motorways run 130 km/h, the same as parts of Spain, but towns drop to a strict 40 km/h that is easy to miss after a fast open road. The drink-drive limit is 0.05, identical to Spain on paper, but Argentina sets rules province by province and several enforce zero-tolerance on certain roads — so the safe assumption is no alcohol at all. A speeding penalty runs roughly ARS 10,000-30,000 depending on the province, and you can estimate it with the speeding fine calculator.

One welcome surprise: fuel is cheap, around $0.88/litre, which makes the big distances affordable. The emergency number is 911. For the full local detail, see the Argentina driving guide.