Also retain a copy of the all the paperwork in your car with your documents for at lest 12 months just incase one dept is slow in updating their records. Ive been asked in the past to provide evidence of the bill of sale from the previous owner when the next ITV was going through in my name as their records only showed the previous bod. Things move slowly and in mysterious ways over here.

If you are going to Trafiko yourself and have any promblems when you are there then just ring 012 and ask for an English speaking person and explain the problem or ask the ::)m to speak to "jobs worth" behind the counter. This number will help you out all the time on any consumer based issue in Catalonia. Very helpful to have the number in your mobile especially if you get stopped by the police and need help, for example.