Posted: Tue May 21, 2019 8:10am
As I said, you cannot use a Spanish insurer. Based in Gibraltar, they fall outside of that description. So I’ll clarify - you will not be able to use any of the insurers based in mainland Spain and and falling under Spanish law unless your car is matriculated to Spanish plates.
Also, post-Brexit, no one - not even U.K. government - has any idea of how things will change, as we don’t yet know what type of Brexit it will be (or even IF there will be a Brexit). There will certainly be a new PM, who may have different ideas of how it should be structured. Gibraltar is a contentious issue between the two countries; there is no guarantee that such insurance, if obtained, will continue to be valid.