What to do with my beloved Corsa

You are stuck. The car is not road legal anywhere.
A Spanish ITV will not be valid unless you have it Spanish registered.
Even by chance another person got it back to the ports in the UK then they stand a good chance of being stopped for not having an MOT tax or maybe no insurance too. There are cameras for plate recognition. The car being in your name means that you could well end up with a fine, maybe points on your licence too. That would show up if you have not exchanged your DL for a Spanish one yet.
How you scrap a car which has UK plates in Spain, I do not have a clue. But I can tell you how if you had it Spanish registered.

Just on the point if a person got it back to a U.K. port.

Assuming they were not stopped in say spain or France where the car without ‘road tax' or an MOT cert would probably would be illegal, providing when they arrived in U.K. they had an appointment for an MOT the car can be driven legally to the test wherever that is in U.K

Of course the car would need to be insured and roadworthy to be driven on a road anywhere, but the OP did not say it was not roadworthy and had it been so, presumably he would have been prosecuted for using an unroadworthy car

Not having an MOT / ITV does not mean it is not roadworthy,  just as having one does not mean it is roadworthy only that it was at the moment it was examined.  Only if it were unroadworthy would it be uninsurable

The car could be sold in spain to a U.K. resident and DVLC advised so the ownership transfer could be recorded. 


If one wanted to scrap the car in spain one would need to get a grúa to take it to the scrap yard.  Then DVLA would need to be informed it had been scraped

Thanks very much for your replies guys,

It seems that scrapping it would be the only option then.  Can I not just call up a grua to take to the scrap yard or will I need to get some kind official permit or something?

In reply to John - the car is roadworthy, it's just got flat tyres, a flat battery and 2 year-old petrol in the tank.

Thanks,

Eddie

Eddie.   You could try advertising it for sale and see what happens. 

You may find someone returning to U.K. who would take a chance on not having vehicle exicise licence (road tax).

Eddie,  there is info here re scraping UK Reg vehicle in Spain

http://www.tumbit.com/how-to-guides/art … spain.html.

car is roadworthy

How do you know? There is a long list to check when bringing a car out of a long time of no use.
After 2 years standing:
Tyres could be flat spotted.
Brakes binding.
Rust in body or fuel and brake lines.
Gators perished.
Bearings still in good shape, not seized?
Tyres   and windscreen wipers could well have perished. Maybe the rubber fuel lines too.
Rodents not eaten the wiring loom?
Clutch is free and easy to use. If it is Hydraulic again fluid need to be changed.
Hangers and clamps for the exhaust pipe need to be checked.
Plus the fuel is too old and needs flushing. Brake fluid too.
Then after all that you need a certificate either ITV or MOT to be fully roadworthy.

QUOTE.   
‘Then after all that you need a certificate either ITV or MOT to be fully roadworthy.'

Sorry to split hairs.   But a test certificate is not required to make the car fully roadworthy.

   When  the vehicle is roadworthy one can have a test to prove that it is so

With a U.K. registered vehicle,   one needs an MOT cert to legally use it on a public road in any EU country, with the exception of driving to an appointment with an MOT test centre in U.K. which is permitted by U.K. law

An ITV test of course would have no significance anywhere for a U.K. reg vehicle

So can a car be driven on the road without a certificate be it an MOT; ITV; APK; NCTS etc? I doubt it. Thus the car is not ready for the road. It is not roadworthy.

Rib. 
Please read what I posted regarding the law

Had you done so,  you would not have made your post which mis-quoted me

Thanks very much for your replies guys,

I'll let you know how the scrapping goes