Traffic regulations and penalties in Spain
The reflecting vest is obligatory in many European countries. This is the case in Spain, too.
It is essential that such a vest is deposited in every car because they must be worn in cases of punctures or accidents when the car is left.
§§§ Possible penalties: Up to 90 € when this regulation is disregarded

Speed limits in Spain:
on motorways:     120 km
on common highways:     90 km
in town:     50 km

The admissible alcohol level in Spain is 0,5 ‰. Intensified checks and severe penalties ensure that the aforementioned rules are adhered to. It is obligatory that the seat belts are fastened.
§§§ Possible penalties: Up to 300 € when this regulation is disregarded

Using your mobile whilst driving is strictly forbidden
§§§ Possible penalties: Up to 300 € when this regulation is disregarded

Private-tow-away operations are strictly forbidden.
When filling up the vehicle the engine, lights and electric devices such as radio or mobile are to be turned / switched off.
In cases where children are not properly belted, a possible penalties will be imminent
§§§ Possible penalties: Up to 300 € when this regulation is disregarded

Dogs taken along have to be belted, too. Parking tickets are required in almost every big city; pay heed to parking zones that are marked blue. Such parking zones are to be paid for. White zones, however, are free of cost.

The roundabout is very popular in Spain and ensures a better flow of the traffic (also in rural regions). It is always the vehicle inside the roundabout which has the right-of-way.