Originally Posted by Landlockedpirate
Only applies if you have a Spanish registered car, If you are using a Spanish car, buy a Spanish registered trailer, its easier in the long run.
Correct. I tow through Spain on a regular basis with a British registered car and British trailer and have never had any problems. Just make sure you have all the documents for the car (V5, insurance, MOT), yourself (passport and both parts of licence) and boat (SSR, insurance, bill of sale and proof of VAT status). Be aware that some of the rules are different in Spain, such as the requirement to have wing mirror extensions fitted if the trailer is atall wider than the car (I got fined for this last year), a maximum width of 2.55m and a requirement for any rear overhang to be marked with a square red/white board.