Hi guys, thanks for your replies, got home last Friday after a 15 hour ride. We have a defective clutch, so non-stop highway seemed the right option. But we made it :)
Too bad we couldn't meet up, seems we had a too tight schedule. Have been driving 6+ hours every day, all the way to Sevilla and back through Portugal and Bilbao.
Next time I'll try to plan a bit better ahead and setup a meeting somewhere that fits.
About next time, we've been thinking of going to the Pyrenees and North Spain in the winter time, got and tips for that time of the year?