Barcelona → France (cross-border, AP-7 / A-9)
North on the AP-7 past Girona to the La Jonquera border, where the road continues into France as the A-9 "La Catalane" toward Perpignan and Montpellier. The same app and free card that you use in Barcelona keep working on French motorways too — with a live price shown before you plug in at each stop along the way.
