Cheap petrol/gas in 1994
At first I was surprised to see numerous petrol/gas station built in rocks on both sides of main highway on the top of the Port D'Envalira pass. Well, that time in 1994 the gas/petrol was about 25-30% cheaper in Andorra than in France and Spain. With my very low budget it was great news and surely I followed French drivers and fed my car with that "cheap" petrol.
Unfortunatelly it does not work that way today. Gas/petrol is at the same price or it's maybe up to 5-10% cheaper in Andorra than in France or Spain (look here).