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I'm not rushin' there for a vacation!
But I hear the prices there are great for travelers! They need the foreign currency, unless it's Greek or Spanish or... Well, I'm sure they'd like your Pounds!!!
Just be sure to do a thorough walk-around of the rental vehicle before leaving the agency. And I would highly recommend the additional 'insurance rider.' In this case, that's probably an actual person who rides with the vehicle and can testify as to who/what caused the (inevitable?) accident!
This kind of problem is even worse in China where there are so many new drivers, none of which have any concept of the 'rules of the road!' Same behaviors as when they all 'drove' bicycles. But the results are slightly more devastating when the vehicles now are 10 times as fast and twenty times as heavy!!
Of course, I'm still amazed that there aren't more problems in the 'isles' where you still insist on driving on the wrong side of the road...