Importing a car from Mainland Spain

Hi All, I have a Spanish car registered in Malaga.  I want to bring it over to Tenerife, and keep here.   Does anyone know what the procedure is to register here and what taxes are involved.  I don't have a permanent place or residency in Tenerife, as I am only here on holidays at the moment, and we will probably rent for many months before we buy.  Would that make registering a car here more difficult?

Any help or pointers to people that can do this would be great.

Thanks